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LenaWriter [7]
3 years ago
12

The total cost of four pens and seven mechanical pencils is $13.25. The cost of each pencil is 75 cents

Mathematics
2 answers:
alekssr [168]3 years ago
5 0
The answer which is not listed but it is 2 dollars per pen
Goshia [24]3 years ago
5 0
The answer is $2 for one pen. I hope this helps you :)
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Please help me 25 Points plz also Brainlliest just please help me.
cricket20 [7]

Answer:

101.7 ft I think

Step-by-step explanation:

5 1/3 times 2 is 10.7

4 3/4 time 2 is 9.5

10.7 times 9.5 is 101.65

The six becomes a 7 to make 101.7

3 0
3 years ago
Solve this steps not needed
777dan777 [17]

Hi!

When you add a negative number, you really just subtract it. So let's solve this.

Convert the mixed numbers into improper fractions.

\frac{434}{9} - \frac{351}{9}

Solve

434 - 351 = 83

\frac{83}{9}

The sign of this fraction is positive

Hope this helps! :)

-Peredhel

4 0
3 years ago
Read 2 more answers
Tammy bought a nightstand that was marked down 60% from an original price of $50. If she paid 10% sales tax, what was the total
AURORKA [14]

Answer: the total cost of the nightstand is $22

Step-by-step explanation:

The original price of the night stand is $50. If the original price of the night stand was marked down by 60%, it means that the amount of money by which it was reduced would be

60/100 × 50 = 0.6 × 50 = 30

The new selling price would be

50 - 30 = $20

If she paid 10% sales tax,the amount of tax paid would be

10/100 × 20 = 0.1 × 20 = 2

Therefore, the total cost of the nightstand would be

20 + 2 = $22

7 0
3 years ago
Please hellllllllppppppppppppppppppppppppppp
vitfil [10]

Answer:

21^{10}

Step-by-step explanation:

First, multiply the 3 and the 7 together, and then "multiply" the exponents -8 and 3. (However, when "multiplying exponents, you're really just adding them together: -8 + 5)

(21^{-5})^2

Then, multiply the -5 and -2 together, giving you:

21^{10}

5 0
3 years ago
3. A children's slide is 10 feet long and inclines 64° from the ground. The
Nata [24]

Answer:

  87.0°

Step-by-step explanation:

The law of sines can be used to solve this. We have two sides of a triangle and the angle opposite one of them. We want to find the angle opposite the other known side.

In the attached, the triangle is ΔACS. We have side "a" = 9, and side "c" = 10. Angle A is given as 64°. The law of sines tells us ...

  sin(C)/c = sin(A)/a

  sin(C) = (c/a)sin(A)

  C = arcsin((c/a)sin(A)) = arcsin(10/9·sin(64°)) ≈ 87.03°

The ladder makes an angle of about 87° with the ground.

3 0
3 years ago
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