Answer:
r = -15
Step-by-step explanation:
2r + 8 - r = -7
~Combine like terms
r + 8 = -7
~Subtract 8 to both sides
r = -15
Best of Luck!
Answer:
hii
Step-by-step explanation:
Group Like Terms
2r-r+8=-7
Add smiliar elements
r+8=-7
Subtract 8 form both sides
r+8-8=-7-8
SImplify
r=-15
Rob is saving to buy a new MP3 player. For every $14 he earns babysitting, he saves $5. On Saturday, Rob earned $84 babysitting. How much money did he save?
He saved 30 dollars through babysitting. My math is:
84 / 14 = 6
6 x 5 = 30
I hope this helps!
What is 63/4 as a decimal?
Step-by-step explanation:
15.75 very easy.......
The population density of the world is calculated by finding the ratio of the total number of people in the world to the area of land. Since the earth is about 1.5 x 108 square kilometers, approximately how many people would inhabit each square kilometer of the earth? Show the work and / or explain your reason
Answer:
51
Step-by-step explanation:
A = Surface area of the Earth = [tex]1.5\times 10^8\ \text{km}^2[/tex]
Total number of people on Earth = 7.594 billion as of 2018 = [tex]7.594\times 10^9[/tex]
We need to find the number of people living in each square km of land area.
So, we need to divide the number of people by the land area of the Earth.
[tex]1.5\times 10^8\ \text{km}^2=7.594\times 10^9\ \text{people}[/tex]
[tex]\Rightarrow 1\ \text{km}^2=\dfrac{7.594\times 10^9}{1.5\times 10^8}[/tex]
[tex]\Rightarrow 1\ \text{km}^2=50.63\approx 51\ \text{people}[/tex]
So, 51 people will inhabit each square km of land area.
We spotted two
during our hike through the park.
A. deer
B. deers
C. deeres
D. deered
Answer:
deer
Step-by-step explanation:
daffy + duck = Daffy Duck :)
what is the diffrince between 200,000 - 124,35
Answer:
76,650
Step-by-step explanation:
Answer: 187, 565
Step-by-step explanation:can i have brainliest?
Simplify the following expression by combining like terms:
- 2 +63 +2 - 2x + 8 - 4:
Answer:
6+4x-3z
Step-by-step explanation:
-2+6x+z-2x+8-4z
6+6x+z-2x-4z
6+4x+z-4z
6+4x-3z
What is the correct answer for all?
Answer:
Ah man........
Step-by-step explanation:
Are you crazy??
Somebody help me with this
Answer:
1
Step-by-step explanation:
when multiplying fractions it doesn’t matter if they have the same denominator (bottom) just multiply straight across
(6/12)x(6/3)
36/36
1
Which of the following has the same value as the expression below? 4−4⋅4−64−2
Answer:
0
Step-by-step explanation:
that what goggle told me
What is the slope of the line that passes through the points (8,8) and
(20,-2)? Write your answer in simplest form.
Answer:
[tex]\frac{5}{6}[/tex]
Step-by-step explanation:
Answer:
-5/6
Step-by-step explanation:
Calculate the quotient below and give your answer in scientific notation.
2.64*10^-3\8.0*10^0
Answer:
The quotient of: [tex]\frac{2.64\cdot 10^{-3}}{8.0\cdot 10^0}[/tex] is: [tex]\mathbf{3.3\times 10^{-4}}[/tex]
Step-by-step explanation:
We need to find quotient of: [tex]\frac{2.64\cdot 10^{-3}}{8.0\cdot 10^0}[/tex]
We know that [tex]10^0=1[/tex]
Now solving:
[tex]\frac{2.64\cdot 10^{-3}}{8.0\cdot 10^0}\\=\frac{2.64\cdot 10^{-3}}{8.0}\\=\frac{0.00264}{8}\\=0.00033[/tex]
Writing it in scientific notation
[tex]0.00033\\=3.3\times10^{-4}[/tex]
So, the quotient of: [tex]\frac{2.64\cdot 10^{-3}}{8.0\cdot 10^0}[/tex] is: [tex]\mathbf{3.3\times 10^{-4}}[/tex]
find the zero of the linear funtion;
f(x)=5x -10
Answer: (2, 0)
When y hits zero, that's where you can find the zero thing
5x-3y=2 Determine the ordered pair
5x - 3y = 2. -3y = -5x + 2. y = (5/3)x - 2/3. x y.
Step-by-step explanation:
5x-3y=2
-3y=-5x+2
y=(5/3)x-2/3
With Integers:x=1, y=1x=4, y=6x=7, y=11x=10, y=16x=13, y=21A warehouse store sells 4.5-ounce cans of tuna in packages of 3. A package of 3 cans costs $4.32. The store also sells 3.5-ounce cans of the same tuna in packages of 4. A package of 4 cans costs $3.92. The store sells 6.5-ounce cans in packages of 5 cans for $9.75. Which package is the best buy?
Answer:
The 6.5-ounce cans offer the largest size at a fair cost and is the best to buy.
Step-by-step explanation:
Size of the 4.5-ounce cans of tuna in package = 4.5 × 3 = 13.5 ounce
Cost of the package= $4.32
Size of the 3.5-ounce cans = 3.5 × 4 = 14 ounce
Cost of the package= $3.92
Size of the 6.5-ounce cans = 6.5 × 5 = 32.5 ounce
Cost of the package= $9.75
The 6.5-ounce cans offer the largest size and is the best to buy.
What is the slope for the equation -12y = -10x + -24
Complete the square for the expression, then factor the trinomial.
x^2-4x
please explain how to do it as well! :)
Answer:
0
=
(
x
2
−
4
x
)
−
5
=
(
x
2
−
4
x
+
4
)
−
4
−
5
=
(
x
−
2
)
2
−
9
so
(
x
−
2
)
2
=
9
or
x
−
2
=
±
√
9
or
x
=
2
±
3
so
x
=
−
1
or
x
=
5
Step-by-step explanation:
This figure is made from a part of a square and a part of a circle.
What is the perimeter of this figure, to the nearest unit? ______ units
Answer:
38 units (rounded off to the nearest unit)
Step-by-step explanation:
Find the perimeter of the circle part, if the circle section is a 90degree slice, then it is a quarter of the full circle's circumference[tex]Circumference=pi\times 2radius\\C=\pi \times 2(5)\\C=10\pi[/tex] now find a quarter of this then[tex]SectionCircumference=\frac{5}{2}\pi[/tex] Then find the perimeter of the whole thing by adding the side [tex]P=10+10+5+5+\frac{5}{2}\pi =37.85[/tex]The perimeter of the given figure will be 38 units.
What is perimeter?Its the sum of length of the sides used to made the given figure.
We are given that Measures of three linear sides as 5, 10, 10, 5 units.
Radius of the circular part = 5 units
Since Perimeter of a polygon = Measure of the circumference of the polygon
The Perimeter of the figure = measure of the three straight lines + measure of the circumference of the quarter circle
Thus Measure of linear sides = 5 + 10 + 10 + 5 = 30 units
Circumference of the quarter circle = 2πr
= 2π(5)
= 7.85 units
Perimeter of the figure = 30 + 7.85
= 37.85
≈ 38 units
Therefore, the perimeter will be 38 units.
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The tree diagram represents an
experiment consisting of two trials.
5
6 3
5
B
P(A and D) = [?]
===============================================
Explanation:
Highlight the path that starts with A and then leads to D
Multiply the values highlighted to get 0.5*0.6 = 0.3
Effectively we've computed the following
P(A and D) = P(A)*P(D given A)
P(A and D) = 0.5*0.6
P(A and D) = 0.3
The notation "D given A" indicates we know event A has happened. We cannot simply say P(D) because there is another event D that happens on the lower branch B; so instead we say P(D given A). You can replace the word "given" with a vertical bar to write P(D | A), though in my opinion the vertical bar could be easily mistaken for the uppercase letter i, a lowercase letter L, or the numeric digit "one". I find its easier to describe what is going on rather than use the vertical bar notation.
The ratio of boys to girls in a group is 3:1. If there are 52 more boys than girls, work out how many people there are in total.
answer is 104
Step-by-step explanation:
let the no. of girls =x
then no. of boys=x+52
A.T.Q
x+52/x=3/1
x=26
hence girls =26
and boys =78
total students =26+78=104
Answer:the ratio of boys to girls now is 21:17 now you just at 21 and 17 which is 38 then that’s the answer.
Step-by-step explanation:
PLEASE ANSWER I GIVE POINTS:
A clothing store is advertising t-shirts on sale for (x-3) dollars and skirts for (x + 6) dollars. Write an expression that represents the cost of 5 t-shirts and 3 skirts.
Answer:
8x + 3
Step-by-step explanation:
The cost of 5 t-shirts and 3 skirts
= 5(x - 3) + 3(x + 6)
= 5x - 15 + 3x + 18
= (5x + 3x) + (-15 + 18)
= 8x + 3
Answer:
5(x-3)+ 3(x+6)
Step-by-step explanation:
5 (x-3)+ 3(x+6)
Which ordered pairs make both inequalities true? Check all that apply.
First get brainliest!!!
Answer:
(0, -2) and (1, 1) both work in this system of equations.
Step-by-step explanation:
Happy to help! The best way to find if it is a solution is to look for those points on the graph. When we graph the point, it needs to fall in an area where both lines or shaded or on a solid line.
Look carefully and see if you can find points like these!
(0, -2) falls on a solid line.
(1, 1) falls in the double shaded area.
Therefore, (0, -2) and (1, 1) both work in this system of equations.
Good luck!
Answer:
1,1 and 2,2
Step-by-step explanation:
i just took the test
what is the full from of math
Answer:
the full form of math is mathematics
hope it helps
Answer:
full form of mathematics. Explanation: M-miracle of nature. A-art of arithmetic. T-tool of knowledge.
Hope this helps, have a great day/night, and stay safe!
Help need it asap plessss
Answer:
C) $14.2
Step-by-step explanation:
$3 is flat value. minimum price. $0.8 per mile for 14 miles is 0.8x14 which equals to 11.2. Add $3 and get $14.2.
C) 14.20
.8×14=11.2
11.2+3=14.2
Expand and combine like terms. (3-8w^2)^2
Answer:
64w^4 - 48w^2 + 9
Step-by-step explanation:
(I rearranged the terms so I could solve it easier)
Expanding the square:
(-8w^2 + 3)^2
(-8w^2 + 3)(-8w^2 + 3)
Combining like terms:
64w^4 - 24w^2 - 24w^2 + 9
64w^4 - 48w^2 + 9
Final answer: 64w^4 - 48w^2 + 9
Q2. At a pizzeria, a plain slice of pizza costs $1.75, and each additional
topping costs $0.75. Jared buys a slice of pizza for a total cost of $4.00.
Which equation could be used to determine how many additional toppings
Jared had on his pizza? Let x = the number of toppings.
1.75x + 0.75 = 4
1.75 -0.75x = 4
1.75x -0.75 = 4
1.75 +0.75x = 4
Answer:
1.75+0.75x=4
Step-by-step explanation:
$1.75 is the set price, and you add $0.75 for every topping.
Felicity the clown inflates 2 balloons in 5 minutes. Grumpy the clown ties 5 balloon animals in 12 minutes they both work at a steady rate. If Felicity maintained this constant rate, how many balloons could she inflate in one hour? If Grumpy maintained this constant rate, how many balloon animals could he tie in one hour?
Answer:
24 Balloons for Felicity
25 balloons for Grumpy
Step-by-step explanation:
Graph y = 2/5x
Graph y = 5/12x
Graph x = 60
Find intersects
(60,24)
(60,25)
Brianna bought a sandwich, apple, and cookie for lunch. The total was $5. if a sandwich costs six times more than the cookie, and an apple costs three times more than the cookie, how much does each item cost?
Answer:
Cookie=0.5, Apple=1.5, sandwich= 3
Step-by-step explanation:
Lets say cookie = x, then sandwich = 6x since sandwich is 6 times more expensive, apple = 3x. function: 6x+3x+x =5
10x=5
x=0.5
Answer:
The cookie costs $0.50, the apple costs $1.50, and the sandwich costs $3.
Step-by-step explanation:
I multiplied 0.50 by 3 (for the apple) and got 1.50, then I multiplied 0.50 by 6 (for the sandwich) and got 3. I then added them all together and got 5.
Which equation is represented by the graph below?
Answer: 2/3 x +6
Step-by-step explanation:
slope is 2/3 and y intercept is 6
Celina measured the height of a window frame as 5.55 feet, but the actual height was 6 feet. What is the percentage of error in Celina's measurement? (1 point) Question 11 options: 1) 6.45% 2) 7.50% 3) 9.12% 4) 13.33%
Is this Dolli Buchannan Its Alexis!!!!
10676 rounded to the nearest 100
The rounding number of 10676 nearest 100 is 10,700.
What is Rounding number?
To making a number simpler but keeping its value close to what it was, is called Rounding.
Given that;
The number is 10,676
Now, To round the number nearest to the 100 , we check the tens digit ,if the digit is equal to 5 or more then round up, and if the number is less than 5 then its round down.
Here, In the number 10,676 the digit in the tens place is 7 which is more than 5, so we can round up.
Hence, The rounding number = 10,700
Thus, The rounding number of 10676 nearest 100 is 10,700.
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