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2 years ago

Jeff is 18 years older than Joe, and Jeff is also 2 1/2 times as old as Joe. How old is Joe?

Mathematics

1 answer:

Yuri [45]2 years ago

6 0

7 years

First of all, half of 18 is 9, and if you divide 18 by 2.5, it results in 7.2. I hope this helps!

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A rectangular lot whose perimeter is 300 ft is fenced along three sides. An expensive fencing along the lot's length cost $30 p

puteri [66]

The given dimensions that we have in this question are 105 and 45

<h3>How to solve for the dimensions</h3>

We have 2(l + b ) = 300

l + b = 300/2

l + b = 150 ----- 1

The fencing would be

30l + (6b + 6b) = $3690

30l + 12b = 3690 ---- 2

We have to solve this through the use of simultaneous linear equation

The calculator that has been used to solve this is the simultaneous linear equation calculator.

This would give us the values of 105 and 45.

We have to conclude that the dimensions are 105 and 45

Read more on dimensions here

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1 year ago

Stefan did 1 push-up on Sunday, 2 push-ups on Monday, 4 push-ups on Tuesday, 8 push-ups on Wednesday, and 16 push-ups on Thursda

statuscvo [17]

Answer:

Step-by-step explanation:

taste of change is by a factor of 2. it was 16 on Thursday. so 16x2 = 32

4 0

2 years ago

Triangle ABC has side length of 14, 8 and 10.4 what are the possible side lengths of a triangle DEF if ABC is similar to DEF

defon

Answer:

<em>DEF can have possible side lengths of 28, 16, 20.8</em>

Step-by-step explanation:

<u>Triangle Similarity</u>

If the three sides of two triangles have the same proportion, the triangles are similar (SSS theorem).

Triangle ABC has side lengths of 14, 8, and 10.4.

Any other triangle whose side lengths are the same lengths of ABC multiplied by a constant scale factor is similar to ABC.

For example, select scale factor 2. Thus, the triangle of side lengths 2*14=28, 2*8=16, and 2*10.4=20.8 is similar:

DEF can have possible side lengths of 28, 16, 20.8

Any other scale factor will do.

8 0

2 years ago

Mary is selling chocolate bars to raise money. She earns $3 for each solid milk chocolate bar sold and $4 for each caramel-fille

m_a_m_a [10]

Answer:

3m + 4c

Step-by-step explanation:

Whenever a word problem says the word earn that means the slope, also known as the rate of change, will be positive. Knowing this you can determine that both the caramel and milk chocolate slopes will be positive. After figuring all that out the only thing left to do is to make the equation. You know you have two slopes, and each slope needs a variable, so you will have to look back at the question. It is given that m represents the milk chocolate and c represents the caramel. Now all you have to do is make the slope the coefficient to the corresponding variable. The milk chocolates are 3 dollars, so the 3 goes in front of the m and the caramel chocolates are 4 dollars, so teh 4 goes in front of the 4. Since both slopes are positive no negatives or minus signs will be used in the equation. Knowing all this information you can now create the expression 3m + 4c.

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2 years ago

3b + - 6b + 4a + -12b + 3a

Liono4ka [1.6K]

Answer:

-15b +7a

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers