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3 years ago

Solve the equation 2+3/4(2a-2)=8

Mathematics

2 answers:

Snowcat [4.5K]3 years ago

6 0

Answer:

a=5

Step-by-step explanation:

2+(3÷4)×(2a-2)=8

by multiplying 3÷4 with (2a-2).....

2+1.5a-1.5=8,

then making 1.5 go the other side with changing the sign into positive

2+1.5a=9.5,

then making 2 go to the other side with negative sign

1.5a=7.5,

then by dividing 1.5 in both sides....

a=5

jok3333 [9.3K]3 years ago

3 0

Answer:

A=5 hope this works

Step-by-step explanation:

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DochEvi [55]

Answer:

<u>23 consumer.</u>

Step-by-step explanation:

Given:

Number Of Responses for Thirsty = 49

Number Of Responses for Clean = 24

Number Of Responses for Strong Ones = 15

Number Of Responses for PowerWash = 12

So,

The total number of Responses = 49 + 24 + 15 + 12 = 100

So, the probability to prefer PowerWash = 12/100 = 0.12

For a group of 195 consumers:

prediction to prefer PowerWash paper towels = 0.12 * 195 = 23.4

So,

The number of consumers prefer PowerWash paper towels = <u>23 consumer</u>

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3 years ago

Trapezoid QRST has two right angles. A 5-in.altitude can be drawn dividing QRDT into a rectangle and an isosceles right triangle

Vika [28.1K]

Answer:

The area of the trapezoid is 57.5 square inches

Step-by-step explanation:

we know that

The trapezoid QRST can be divided into a rectangle QRDT and an isosceles right triangle RSD

see the attached figure to better understand the problem

step 1

The area of rectangle is given by the formula

$A=((QR)(RD)$

we have

$RD=5\ in$ ----> altitude

$QR=9\ in$

substitute

$A=((9)(5)=45\ in^2$

step 2

Find the area of the isosceles right triangle

The area of triangle is given by the formula

$A=\frac{1}{2}(RD)(DS)$

we have

$RD=DS=5\ in$ ---> because is an isosceles triangle

substitute

$A=\frac{1}{2}(5)(5)=12.5\ in^2$

step 3

Adds the areas

$A=45+12.5=57.5\ in^2$

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3 years ago

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Anit [1.1K]

Answer:

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Step-by-step explanation:

The place value ten-thousandth falls on number 5. The following number is 7 and because 7 is greater than 5, "5" turns into 6.

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A box contains $7.05 in nickels, dimes, and quarters. There are 42 coins in all, and the sum of the numbers of nickels and dimes

german

I BELIEVE that there are 22 quarters, 13 dimes, and 7 nickels I’m super super sorry if wrong

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3 years ago

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Verdich [7]

Answer:

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Step-by-step explanation:

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