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charle [14.2K]
2 years ago
7

Write a number sentence to add 6 tens 21

Mathematics
2 answers:
Dahasolnce [82]2 years ago
8 0
6*10+21 IS the number sentence
vfiekz [6]2 years ago
3 0

Answer:

6 tens to 21 = 81

Step-by-step explanation:

Given

6 tens

21

To write a number sentence to represent the description in the question, follow these steps;

  • Convert 6 tens to number: From number representation, we know that tens can be replaced by 10;

So,

6 tens = 6 * 10

6 tens = 60

  • Then we add the result to 21

60 + 21

This gives a result of 81.

So, Addition of 6 tens to 21 is equal to 81

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Cally wants to coat her driveway with a winter sealer. Her driveway is 18 feet long and shaped like a trapezoid. At the garage d
stellarik [79]

Answer:

Amount of Winter sealer for 2 coats[in square feet] = 576 square feet

Step-by-step explanation:

Given:

Length of drive way at garage door = 12 feet

Length of drive way at street = 20 feet

Length of total driveway = 18 feet

Find:

Amount of Winter sealer for 2 coats[in square feet]

Computation:

Amount of Winter sealer for 2 coats[in square feet] = 2[Area of trapezoid]

Amount of Winter sealer for 2 coats[in square feet] = 2[(1/2)(Sum of parallel side)(Height)]

Amount of Winter sealer for 2 coats[in square feet] = 2[(1/2)(12 + 20)(18)]

Amount of Winter sealer for 2 coats[in square feet] = 2[(1/2)(32)(18)]

Amount of Winter sealer for 2 coats[in square feet] = 32 x 18

Amount of Winter sealer for 2 coats[in square feet] = 576 square feet

5 0
2 years ago
If y = 12x-2 were changed to y = 12x, how would the graph of the new
Basile [38]

Answer: A. It would be shifted up.

Step-by-step explanation: the only thing that is changing in the two equations is the last number. The last number is not there in the second equation because the y-intercept is 0. The y-intercept in the first equation is -2 and shifts up 2 to y-intercept if 0. Therefore, your answer would be A. It would shift up.

3 0
3 years ago
What is the volume, in cubic in, of a rectangular prism with a height of 8in, a width of 5in, and a length of 9in?
Maslowich

Answer:

360 in ^3

Step-by-step explanation:

The volume is given by

V = l*w*h

 = 8 * 5 * 9

  = 360 in ^3

3 0
3 years ago
Gabrielle's age is three times Mikhail's age. The sum of their ages is 56, what is Mikhail’s age?
4vir4ik [10]
Gabrielle's age is 3x (in which x is mikhail's age)
the sum is 56 so 3x+x=56

3x+x=56
4x=56
x=14

since x was mikhail's age, mikhail is 14 years old
6 0
2 years ago
A consumer shops for a sofa. The store is having a 20% off sale on all furniture. What is the discounted, pre- tax cost of a sof
lakkis [162]
Answer:
The answer is 408

Explanation:
20% of 510 is 102 and 510 - 102 is 408
8 0
2 years ago
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