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guapka [62]
3 years ago
9

Fred has a bag of coin with only nickels and quarters. He got $20 by

Mathematics
1 answer:
Sedbober [7]3 years ago
5 0

Answer:

75 quarters 25 nickels

Step-by-step explanation:

q=quarters n=nickels

q+n=100   n=100-q

0.25q +0.05(100-q)=20

From now I will multiply  by 100 to avoid decimals

25q + 5(100-q)=2000

20q=1500

q=75       n=25

75*0.25= 18.75

25*0.05=1.25

18.75+1.25=20

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Which phone has a better price plan: IPhone 11 Pro or Samsung Galaxy S10? Why? What are the price plans? Brainliest for the best
jok3333 [9.3K]

Answer:

Samsung S10

Step-by-step explanation:

        Price Plans

iPhone 11 Pro: $41.67/mo.

Galaxy S10: $31.25/Mo

<u>_________________</u>

         Why?

<em>The Galaxy S10 has a 6.1-inch screen that's slightly larger than the iPhone 11 Pro's 5.8-inch display. It's also sharper than Apple's iPhone, or at least it should be on paper. ... But having a higher resolution doesn't always mean one screen is better than the other.</em>

7 0
3 years ago
Read 2 more answers
The two lines represent the amount of water, over time in two tanks that are the same size. Which container is filling more slow
Brut [27]
B is slowly and A is filling more quickly because the amount of water increases during a smaller period of time.
6 0
3 years ago
For the past 25 days, jonathon has read for n minutes each day. His total number of minutes read is 875. Write an equation to ex
liubo4ka [24]

Answer:

Required equation is: 25n = 875

Step-by-step explanation:

Let n be the number of minutes Jonathon read per day

Now

He read for 25 days and total 875 minutes

The equation will be:

25n = 875

We can solve this equation to find the number of minutes each day

Using Division property of Equality

\frac{25n}{25} = \frac{875}{25}\\n = 35

Hence,

Required equation is: 25n = 875

6 0
3 years ago
The product of 7 and 0.04 is 0.28.<br><br> [True]<br><br> or<br><br> [False]
tino4ka555 [31]
<span>The product of 7 and 0.04 is 0.28=true</span>
6 0
3 years ago
Read 2 more answers
Someone please help
AleksandrR [38]

Replace y with 31:

31 = 7x -4

Add 4 to both sides:

35 = 7x

Divide both sides by 7:

x = 5

Input x = 5

6 0
3 years ago
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