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3 years ago

How many ways can you make change for .55 cents using only nickels, dimes and quarters

Mathematics

1 answer:

lora16 [44]3 years ago

6 0

Answer:

A few ways are:

2 quarters and a nickel

5 dimes and a nickel

1 quarter and 3 dimes

11 nickels

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When figuring out the amount of mulch would be needed for Alex's back yard, he created an equation that

soldier1979 [14.2K]

Answer:

Alex will need 14 bags

Step-by-step explanation:

B= 4(2x+7)+3(2x+7)

and

2x+7=2

First, we should solve the second equation to obtain x:

2x+7=2

2x=2-7

x= -5/2

Then, we use this answer to calculate B:

B=4(2(-5/2)+7)+3(2)

B=4(-5+7)+6

B=4(2)+6

B=8+6

B=14

Alex will need 14 bags

7 0

3 years ago

a pipeline is laid at a rate of 1/8 mile per day.How many miles of line would be completed in 29 1/2 days

Setler [38]

Answer:

In 29 1/2 days, the total pipe laid is $(\frac{59}{16})$ mile.

Step-by-step explanation:

The length of pipe laid in 1 day = 1/8 mile

So, the length of pipe laid in half day = half of (1/8 mile)

= $\frac{1}{2} \times \frac{1}{8} = \frac{1}{16} \textrm{mile}$

Now, 29 1/2 days on simplification means 29 and half day.

So, length of pipe in 29 days = $29 \times \frac{1}{8} = \frac{29}{8}$ mile

Now adding the length laid in half day = $\frac{29}{8} + \frac{1}{16} = \frac{29 (2) + 1}{16} = \frac{59}{16} \textrm{mile}$

So, in 29 1/2 days, the total pipe laid is $(\frac{59}{16})$ mile.

8 0

3 years ago

Ayuda porfa <br> 3x + 20 = 80+60

svetlana [45]

Answer:

Step-by-step explanation:

3x + 20

You will need to find out what x represents by doing that you add 80+60 which equals 140 now you know what your missing

3 times what + 20 equals 140

40×3=120+20=140

Your answer would be 3•40+20=140

3 0

3 years ago

Question 3 of 33

Zinaida [17]

Answer:

B. Regular tessellation

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3 years ago

Read 2 more answers

I need help on the formula for this

Ierofanga [76]

The formula for a come is V=πr^2h/3.

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3 years ago