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3 years ago

Find four consecutive multiples of 5 whose sum is 90

Mathematics

2 answers:

STatiana [176]3 years ago

5 0

Answer:

15, 20, 25, 30

Step-by-step explanation:

If want to find the first multiple, we could actually use the equation: x + (x+5) + (x+5+5) + (x+5+5+5) = 90. After simplifying this term, we would get 4x+30 = 90 which then transforms into 4x=60 which simplifys to x = 15. Plug 15 into the original equation, and you would get the multiples 15 + 20 + 25 + 30 = 90.

romanna [79]3 years ago

3 0

The answer is 15, 20, 25, and 30

We know that you need to have a multiple of 5. The sum is 90. First divide 90 by something. Let's start with 15. It is a multiple of 5. You can divide by 90. Now do the same thing again. Then, eventually, you would get 15, 20, 25, and 30 is the answer.

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Lucy spends $140 at the grocery store. Dairy items made up 1/7 of her purchase and vegetables accounted for 3/20 of her total. H

Inessa05 [86]

For this case we make a rule of three to find the cost of dairy products and vegetables.

$ 140 --------------> 1

x ------------------> $\frac {1} {7}$

Where "x" represents the amount of money spent on dairy products.

$x = \frac {\frac {1} {7} * 140} {1}\\x = 20$

So, I spend $ 20 on dairy products.

Now we have:

$ 140 --------------> 1

y ------------------> $\frac {3} {20}$

Where "y" represents the amount of money spent on vegetables.

$x = \frac {\frac {3} {20} * 140} {1}\\x = 21$

So, I spend $ 21 on vegetables.

Therefore, I spend $ 41 on vegetables and dairy products.

$ 140- $ 41 = $ 99

Spending $ 99 dollars on products other than vegetables and dairy products

Answer

$ 99

7 0

4 years ago

Q + 15 = 29???? what is it and can u also explain how...?

lubasha [3.4K]

The answer is q= 14

Explanation: in the equation q+15=29 (subtract 15 from both sides) to get q=14

this is a basic algebra equation, if you’re having trouble solving things like this try apps like photomath it will show you step-by-step how to solve equations just like this one for free.

8 0

4 years ago

Select the sets that are not functions.

DedPeter [7]

Answer:

Sets D, E

Step-by-step explanation:

Sets D and E both have repeated x-values , thus making them a relation not a function.

5 0

3 years ago

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horrorfan [7]

The coldest temperature is the negative value furthest away from 0.

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7 0

4 years ago

Read 2 more answers

What is the area of the figure below??? Giving first answer brainliest as long as they have an explanation! Worth 10pts!!

ANTONII [103]

<h3>Answer:</h3>

28inch^2

<h3>Step-by-step solution:</h3>

Rectangle:

[Length x Breadth]

5 + 3 = 8inch

8 x 2.5 = 20inch^2

Right Triangle:

[1/2 x Base x Height]

1/2 x 5 x 2 = 1/2 x 10

= 5inch^2

Left Triangle:

1/2 x 3 x 2 = 1/2 x 6

= 3inch^2

20 + 5 + 3 = 28inch^2

3 0

3 years ago