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3 years ago

if jean and kim combined their weekly allowances they would have $12. Jeans allowance is $2 more than kim’s allowance

1 answer:

5 0

Answer:

jean’s allowance is $7 and kim’s allowance is $5

explanation:

k = kim
j = jean

j = k + 2
k = k

k + k + 2 = $12

2k + 2 = $12

2k (+2 - 2) = ($12 - 2)

= 2k = 10

2k/2 = 10/2

k = 5

j = k + 2

j = 5 + 2

j = 7

so, therefore, kim’s allowance is $5 and jean’s allowance is $7

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y-7+8y=2\\\\
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3 years ago

How do I do this and what’s the answer

lakkis [162]

Answer:

The area of the four curved surfaces is the area of one circle with a radius of 4 cm

Area = PI * radius^2

Area = PI * 4 ^ 2

Area = PI * 16 = 50.26548245744 sq cm

Area of entire square = 8 * 8 = 64 sq cm

Area of yellow region = 64 - 50.265 sq cm =

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Step-by-step explanation:

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3 years ago

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Riley finished her 5k race in One-half hour. Darby finished the same race in Three-fifths hour. Which statement explains which g

Andrej [43]

Answer:

Riley did better than Darby because One-half < Three-fifths.

Step-by-step explanation:

The statement that explains which girl did better would be that

Riley did better than Darby because One-half < Three-fifths.

There are a total of 60 minutes in an hour, If we multiply each of these fractions by 60 minutes it would give us the exact number of minutes that each girl took to finish the race.

Riley: $\frac{1}{2}$ * 60 = 30 minutes

Darby: $\frac{3}{5}$ * 60 = 36 minutes

Therefore, we can see that it took Riley 6 minutes less than Darby to finish the race meaning that she had the better result.

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3 years ago

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yawa3891 [41]

Answer:

171

Step-by-step explanation:

First you plug -4 into the g(x) equation

g(-4)= 1-3(-4)

Use pemdas

g(-4)= 1+12

g(-4)= 13

Next you plug 13 into the f(x) equation

f(13)= 13^2 + 2

First you do 13^2=169

Add 2 and you get 171

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3 years ago

Picture question middle school math

ludmilkaskok [199]

Answer:

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about</h3>

area of triangles
area of rectangle
PEMDAS

<h3>tips and formulas:</h3>

rectangle opposite sides are equal
area of rectangle:l×w
area of triangle:½×h×b

<h3>let's solve:</h3>

the area of the rectangle is

4×7 in²

28 in²

the area of above triangle is

½×6×7 in²

3×7 in²

21 in²

the area of left side triangle is

½×5×4 in²

2×5 in²

10 in²

therefore,

the area of the polygon is

28+21+10 in²

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3 years ago