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professor190 [17]
3 years ago
15

Peggy had 4 times as many quarters as nickels. She had $2.10 in all. How many nickes and how many qurters did she have ?

Mathematics
1 answer:
Delicious77 [7]3 years ago
8 0
A) 4*N -Q = 0
B) .05N + .25Q = 2.10

Multiply B) by 4
B) .2N + Q = 8.40 Adding this to A)
A) 4*N -Q = 0
4.2N = 8.40
N = 2 Nickels
Q = 8 Quarters


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Brandon is shopping at Old Navy during a sale. All shorts are $16 each and all t-shirts are $10 each.He has $100 to spend and wo
DaniilM [7]
Let
x = the number of shorts bought
y =  the number of t-shirts bought

A pair of shorts costs $16 and a t-shirt costs $10. Brandom has $100 to spend.
Therefore
16x + 10y ≤ 100
This may be written as
y ≤ - 1.6x + 10                 (1)

Brandon wants at least 2 pairs of shorts. Therefore
x ≥ 2                               (2)

Graph the equations y = -1.6x + 10 and  x = 2.
The shaded region satisfies both inequalities.

Answer:
Two possible solutions are
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7 0
3 years ago
Can segments with lengths of 15, 20, and 36 form a triangle?
strojnjashka [21]
Ok, so remember

the legnth of the longest side must be LESS THAN the sum of the measures of the other 2 sides
if no longest side (becasue it has 2 longest sides or 3 equal sides), then it can form a triangle




so the longest side is 36

36 must be less than the sum  of 15 and 20
36<15+20
36<35
false

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5 0
3 years ago
Find the volume for the regular pyramid.<br><br><br><br> V =
Paul [167]

Answer:

What do you mean by that?

4 0
2 years ago
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kotegsom [21]

Answer:

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Step-by-step explanation:

A regular pentagon has 5 sides of equal length. The perimeter is the sum of the lengths of those sides. We can use multiplication to find the sum of 5 of the same value:

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Perhaps you want it expanded. Using the distributive property, we multiply each term in parentheses by 5:

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4 0
3 years ago
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kirill [66]

Answer:

Step-by-step explanation:

L = Length

W = Width

W = 2L

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2(2L) + 2L = 174

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              L = 29 ft

W = 2(29) = 58 ft

5 0
2 years ago
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