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Neko [114]
4 years ago
12

A jar contains n nickels and d dimes. There are 28 coins in the jar,and total value of the coins is $2.20. How many nickels and

dimes are in the jar?
Mathematics
1 answer:
cupoosta [38]4 years ago
5 0
<span>There are 12 nickels and 8 dimes in the jar </span>
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Help please don't get it
GarryVolchara [31]

Surface Area is the area of each face added together. For this question lets find the area of one triangle first.

Area of a triangle is base*hight/2, so 6*7/2=21. That was the area of one triangle. We have 4 traingle so we multiply that by for. 21*4=84.

Now, lets find the area of the squre. area of square is side*side or side^2.

So we multiply 6*6=36. that is the area of the square.

To find the surface area, we must add Area of Triangles+Area of Square.

so, 84+36=120

So the surface area is 120

7 0
3 years ago
If the quotient is 12 and the dividend is 288 what is the divisor
WARRIOR [948]
To solve the question we proceed as follows;
dividend/divisor=quotient
from above we can say that:
divisor=dividend/ quotient
=288/12
=24
The divisor is 24
4 0
3 years ago
Isabel works for 6 hours preparing for the art fair. She spends 3 hours on a sculpture and then paints 27 picture frames. How mu
kirza4 [7]

Answer:

6 2/3 minutes

Step-by-step explanation:

3 hours on frames  3 x 60 = 180 minutes total

180/27 frames = 6.66667 or 6 2/3 minutes.

3 0
3 years ago
Using ABC, identify the ratio for sine of C​
Stolb23 [73]

Answer:

BA / AC

Step-by-step explanation:

Given the triangle ABC;

To obtain the Sin C

Defining the attached triangle with respect to C:

Sine = opposite / hypotenus

Sin C = BA / AC

Hence, the ratio of sinC is BA /AC

4 0
3 years ago
Help i will give an award!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Grace [21]

Answer: Plug in answers work backwards; or learn log to get rid of powers

Step-by-step explanation: save time on your test by cheating yourself of knowledge

6 0
3 years ago
Read 2 more answers
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