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3 years ago

PLEASE HELP YOU WILL GET THE BRAINLIEST

Mathematics

1 answer:

k0ka [10]3 years ago

3 0

Answer:

I won't be able to solve the entire question but I will give you the formula and show you how to find the answer

4) 1.65x + 1.36y = 118.17 (i)

x + y = 79. (ii)

From the (i) equation you get

1.65x = 118.17 - 1.36y

x = (118.17 - 1.36y)/1.65 (iii)

Substituting the value of (iii) in (ii)

(118.17-1.36y)/1.65 + y = 79

When you solve it you will get the answer

After that find the value of x and y and multiply them by 1.65 and 1.36 respectively.

Then find their difference and see which class sold more and by how much.

Hope this helps you!

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7. Allan went shopping for stationery. He bought x pens at $1.75 each and y books at

timurjin [86]

Answer:

$4.25

Step-by-step explanation:

x pens=$1.75

y pens =$2.50

Now,

in the terms of x and y ,

Alan spend altogether=1.75 +2.50

=$4.25

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2 years ago

Enter the next three terms in th 30, 45, 67.5, 101.3. - The next three terms are

Katarina [22]

Answer:

I think it's 116.3, 133.8, 167,6

Step-by-step explanation:

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2 years ago

Avery Tag makes an investment today (January 1, 2017). Avery will receive $40,000 every December 31st for the next six years (20

marshall27 [118]

Answer: $2,000,000

Explanation: Let X be the amount of Avery's investment. Since she will receive $40,000 every year for the next six years, the most she will earn is
$40,000 × 6 = $240,000.

Since she wants to earn 12% on her investment, her earnings is equal to 12% of X = 0.12X. Since the most she will earn is $240,000,

0.12X ≤ 240,000
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Hence X ≤ 2,000,000. Therefore, the most amount she should invest is $2,000,000.

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3 years ago

What is equivalent to 5(9q + 7)

Andrej [43]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Sierra applies a coat of epoxy paint to the four sides and floor of a rectangular swimming pool. The pool is 4 feet deep, 18 fee

Brilliant_brown [7]

Answer:

4 gallons of paint

Step-by-step explanation:

We solve using the formula for surface area of rectangular prism.

A=2(wl+hl+hw)

Where:

w = Width

h = Height

l = Length

The pool is 4 feet deep, 18 feet long, and 12 feet wide.

Hence,

=2 × (12 × 18 + 4 × 18 + 4 ×12)

=672 square feet

One gallon of paint covers 155 square feet.

Hence,

155 square feet = 1 gallon of paint

672 square feet = x

Cross Multiply

155 square feet × x = 672 square feet × 1 gallon of paint

x = 672 square feet × 1 gallon of paint/ 155 square feet

x = 4.335483871 gallons of paint

Therefore, based on the calculation above, approximately to the nearest whole number, Sierra uses 4 gallons of paint

4 0

3 years ago