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Margaret [11]
3 years ago
10

Any one who needs help friend me okay?

Mathematics
2 answers:
artcher [175]3 years ago
8 0

Answer:

i dont know you

Step-by-step explanation:

who are you

Gnoma [55]3 years ago
4 0
Hi broski how are you?
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Jim has only dimes and nickels in his coin bank. He has 37 coins with a total value of $2.65.
guajiro [1.7K]

Answer:

21

Step-by-step explanation:

Let x represent the number of dimes and y represent the number of nickels.  The total number of coins is 37; this gives us the equation

x+y = 37

Each dime is worth ten cents, or 0.10, and each nickel is worth five cents, or 0.05.  The total amount of money is given by

0.10x+0.05y = 2.65

This gives us the system

\left \{ {{x+y=37} \atop {0.10x+0.05y=2.65}} \right.

To solve this, we will use substitution.  We will isolate x in the first equation:

x+y=37

Subtract y from each side:

x+y-y = 37-y

x = 37-y

Substitute this into the second equation:

0.10(37-y)+0.05y = 2.65

Using the distributive property,

0.10(37)-0.10(y)+0.05y = 2.65

3.70-0.10y+0.05y = 2.65

Combining like terms,

3.70-0.05y = 2.65

Subtract 3.70 from each side,

3.70-0.05y-3.70 = 2.65-3.70

-0.05y = -1.05

Divide both sides by -0.05:

-0.05y/-0.05 = -1.05/-0.05

y = 21

There were 21 nickels.

4 0
3 years ago
Read 2 more answers
Jackson is two times older than Shelly. If the sum of their ages is 18, how old is Jackson?
salantis [7]
Answer: jackson is 12

explanation:
let the age be represented by x
jackson is 2 times older than shelly so
2x is jackson’s age and x is shelly’s age

since the sum of their ages is 18 then:
2x + x = 18

solve:
3x = 18 ➔ divide by 3 on both sides
x = 6

so now we know shelly is 6

jackson is 2 times older than her so:
2(6) = 12

6 0
3 years ago
Read 2 more answers
Help. I need to factor and solve using the quadratic formula <br>-x^2+2x=7​
aleksandrvk [35]

Answer:

Irreducible factorization

Step-by-step explanation:

7 0
3 years ago
Write an algebraic expression for 3 times x 2 times x minus 4 times x
Tpy6a [65]

Answer:

(3+2)x - 4x

Step-by-step explanation:

I just converted the words, turned them to operations and that's it!

Hope this helps! :D

- Anna

8 0
3 years ago
A piece of stained glass in the shape of a right triangle has sides measuring 8 centimeters, 15 centimeters, and 17 centimeters.
Mashcka [7]

Answer:

60cm^2

Step-by-step explanation:

1. turn triangle into rectangle measuring 15x8

2. find area of rectangle (area = base*height): 8*15 = 120

3. Find area of triangle (divide rectangle area by 2): 120/2 = 60cm^2

3 0
3 years ago
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