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irinina [24]
3 years ago
11

Which math expression means "45 less than an unknown number"?

Mathematics
2 answers:
Allushta [10]3 years ago
6 0

Answer:

D. x * 45

Step-by-step explanation:

this is unknown number, everyone can't answer if there is that mark (*)

mr_godi [17]3 years ago
4 0

Answer:

A because when you subtract x will be less than the unknown number

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A couple took out a $5,000 loan from the bank. The loan had a simple interest rate of 7.5% per year. By the end of the loan, the
Sholpan [36]

Answer:

6 years

Step-by-step explanation:

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8 0
3 years ago
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If x+y=5,x-y=4,find the value of x²-y²​
inysia [295]

Answer:

20

Step-by-step explanation:

→ First find the value of x and y

x + y = 5

x - y = 4

→ Add the equations to cancel out the y's

2x = 9

→ Divide both sides by 2 to find the value of x

x = 4.5

→ Substitute x = 4.5 back into x - y = 4 to find the value of y

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→ Minus 4.5 from both sides to isolate -y

-y = -0.5

→ Multiply everything by -1

y = 0.5

→ Substitute x = 4.5 and y = 0.5 into x² - y²

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4 0
3 years ago
Answers to 5 and 6 please need help please!
Tresset [83]

My friend says 5 is 60 and 6 is b.

8 0
3 years ago
Plzzzzzzzzzzzzzzzzzzzz helppppppppppppppp<br><br> 12 dived 1 1/2
balandron [24]

Answer:

8

Step-by-step explanation:

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8 0
3 years ago
Debbie has $37.5 saved for her new bicycle. That is 0.25 of what she needs. What is the price of the new bicycle?
oksano4ka [1.4K]

<em>Data</em>

• Saved: $37.5

,

• Needs: 0.25 of $37.5

<em>Procedure</em>

37.5\cdot0.25=9.375\approx9.4

Answer: $9.4

6 0
1 year ago
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