2 years ago

If Jill's best friend jumped farther than 6.5 feet, then she beat the school record and

Mathematics

2 answers:

shusha [124]2 years ago

6 0

Answer:

What is this.

Step-by-step explanation:

I guess 7th?

tigry1 [53]2 years ago

3 0

Answer:

what is this for?

Step-by-step explanation:

BTW: 7th graders

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Read 2 more answers

The class treasury contained 30$ in nickels and dimes. If there were 500 coins than how many coins of each type are there?

Alenkasestr [34]

Equation 1. N+D=500

equation 2 5N+10D=3000
This is for equation 1
N=500-d
Substitute into equations 2 and solve for D
5N+10D=3000
5(500-D)+10D=3000
2500-5D+10D=3000
5D=500
D=100
Lets go back the equation 1
N=500-D
N=500-100
N=400
there are 400 Nickles and 100 Dimes

7 0

3 years ago