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topjm [15]
3 years ago
14

Deijah gave Isaiah $6.25 in nickels and quarters. If 12 coins were quarters, how many coins were nickels? Which equation models

this problem?
A) 0.25•12+0.05•n=6.25

B) 0.05n+625=0.25•12

C)25+5n=6.25

D) 6.25+0.05=12•0.25
Mathematics
1 answer:
dem82 [27]3 years ago
4 0
Deijah has $6.25. 

Now, this 6.25 is comprised of 0.05s and 0.25s. 
We know that there are 12 0.25s.

We now want to know how many remaining 0.05s there are.

Again, we know that the number of 0.05s he has, which is 12, multiplied by 0.05, plus the number of 0.25s he has, multiplied by 0.25, equals 6.25.

Thus, the answer is A, 0.25 x 12 + 0.05 x n = 6.25.
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I want to install carpet in my living room, which is 200 inches long and 50 ft wide. The carpet is sold for 5000 naira per yard2
inn [45]

Answer:

462962.96 naira

Step-by-step explanation:

This problem is complicated by the use of two different units.  I chose to use inches for the dimensions of the carpet.

200 in long

50 ft wide = 50 x 12 = 600 in.

Area = 200 x 600 = 120000 in^2

A square yard is a square 36 in. x 36 in. = 1296 in^2

Divide 120000 by 1296 to find out how many square yards of carpet you'll need.

120000 / 1296 = 92.59

Multiply by 5000 naira/yd^2 = 462962.96

7 0
2 years ago
PLZ ANSWER QUICK
STatiana [176]

Answer:

i think its 24

Step-by-step explanation:

because its from P to H and that is 2× D to E so 12×2=24 therefore you're answer is 2r

4 0
3 years ago
Cathy bought 2 jars of sauce for $3, what is the constant of proportionality in this situation
Lady_Fox [76]
$1.50 per 1 jar of sauce I found this by dividing both values by 2.

Hope this helps :)
7 0
3 years ago
Read 2 more answers
The cost y to rent a tent is proportional to x days. if it costs $56 to rent a tent for 7 days what is the formula
Alona [7]
Probably y = 8x. 56 = 8(7), so that works. Without more data, I couldn't say if it could be something else, so that's what I go with.
4 0
3 years ago
Mark has a shipping business. If your package weighs 2 pounds or less, the shipping costs $4. If your package weighs more than 2
maks197457 [2]
<span>So far I have:

(1.25 + 1) </span><span>if </span>x<span> is in the interval</span><span> (-inf,7]
(2.25 +1) </span><span>if </span>x<span> is in the interval (7,13)</span><span>
(3.50+1+3) </span><span>if </span>x<span> is in the interval [13,inf)</span>
7 0
3 years ago
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