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nadya68 [22]
3 years ago
5

Which statement describes the value of the expretion 15×(8+45)

Mathematics
1 answer:
Aloiza [94]3 years ago
7 0
Evaluate the expression and your answer will be 795
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How do you solve the system of linear equations by graphing<br> X+y=7<br> -x+y=-7
morpeh [17]

Answer:

x = 7 and y = 0

Step-by-step explanation:

We can either solve by substitution method or by elimination method or both method . We will solve by both the elimination and substitution method.

X+y=7  ---------------------------------------------------(1)

-x+y=-7  -------------------------------------------------(2)

Subtract equation (2) from equation(1)

2x = 14

Divide both-side of the equation by 2

2x/2 = 14/2

x = 7

Substitute x = 7 into equation (1)

x+y=7  

7 + y = 7

Subtract 7 from both-side of the equation

7-7 + y = 7-7

y = 0

x = 7 and y =0

8 0
4 years ago
7 &gt; -4 subtract from both sides<br>I don't get this question plz help..
11Alexandr11 [23.1K]
You need to subtract 7 from both sides, is how I'm interpreting it. So 0>-11
4 0
4 years ago
2x + 3y = 9
BartSMP [9]

Answer:

D.) 3

Step-by-step explanation:

I think it's D.) 3

.............

5 0
3 years ago
Read 2 more answers
0.482 × 61.2² ÷√98.01
mixer [17]

Answer:

Use by Prime factorisation method

3 0
3 years ago
The frequency of vibration of a piano string varies directly as the square root of the tension on the string and inversely as th
artcher [175]

Answer:

  about 409.946 Hz

Step-by-step explanation:

The multiplier of frequency is (√(tension multiplier))/(length multiplier), so is ...

  (√1.25)/1.2 = (5/12)√5 ≈ 0.931695

So, the longer, tighter string will have the lower frequency of about ...

  0.931695×440 Hz ≈ 409.946 Hz

8 0
3 years ago
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