2 years ago

Please help!!!

Mathematics

1 answer:

WINSTONCH [101]2 years ago

6 0

Answer:

Step-by-step explanation:

2(l+b)

2(3+4)

2(7) now do multiply

answer 14m

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On the road, a bike sign in the shape of an isosceles trapezoid is to be painted. The sign and its dimensions are shown below. W

Oksana_A [137]

Equation

A = (b1 + b2)*h /2

Givens

b1 = 5 feet

b2 = 7 feet

h = 3 feet

Sub and solve

Area = (5 + 7)*3/2

Area = 12*3/2

Area = 36/2

Area = 18 Square feet.

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3 years ago

Bobby put 1/3 of his lawn mowing money into his savings and uses the remaining 2/5 to buy a video game. If he has $12 left, how

Alexeev081 [22]

Given:

Bobby put 1/3 of his lawn mowing money into his savings

He uses the remaining 2/5 to buy a video game.

He has $12 left.

To find:

The amount did he have at first.

Solution:

Let x be the initial amount.

Bobby put 1/3 of his lawn mowing money into his savings. So, the remaining amount is

$x-\dfrac{1}{3}x=\dfrac{2}{3}x$

He uses the remaining 2/5 to buy a video game. Then the remaining amount is

$Remaining=\dfrac{2}{3}x-\dfrac{2}{3}x\times \dfrac{2}{5}$

$Remaining=\dfrac{2}{3}x-\dfrac{4}{15}x$

$Remaining=\dfrac{10x-4x}{15}$

$Remaining=\dfrac{6x}{15}$

$Remaining=\dfrac{2x}{5}$

It is given that the remaining amount is $12.

$12=\dfrac{2x}{5}$

$12\times 5=2x$

$60=2x$

Divide both sides by 2.

$\dfrac{60}{2}=x$

$30=x$

Therefore, Bobby have $30 at first.

6 0

3 years ago

What integer is closest to <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B321%7D%20" id="TexFormula1" title=" \sqrt{321} " a

crimeas [40]

Answer:

Step-by-step explanation:

18*18 = 324

So 18 is the closest integer to $\sqrt{321}$

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2 years ago

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3a-3/a+6=9/6 what is a

Gekata [30.6K]

Answer:

a=1/2

Step-by-step explanation:

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3 years ago

Read 2 more answers

Solve for H<br><br> 19+4H=1-5H

Jobisdone [24]

19=1-5h-4h
19-1=-5h-4h
18=-9h
18/-9=h
h=-0.5

7 0

3 years ago