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3 years ago

What is 80 x 40? Make 5 paragraphs stating the answer.

1 answer:

7 0

80 x 40 is 320. I know 80 x 40 is 320 because 80 + 80 + 80 + 80 is 320. I also know 80 x 40 is 320 because 8 x 4 is 36. If you pretend the 0 is not there it’s 8 x 4. I know you can get the answer quicker that way because it’s just times tables.

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Help for geometry asap

Llana [10]

Given:

Four lines are marked proportion, the length of TW can be determined by

$TW=a+4+b$

Value of a:

Let us set the proportion for the given lines.

Thus, we have;

$\frac{a}{7}=\frac{4}{5}$

$5a=28$

$a=5.6$

Thus, the value of a is 5.6

Value of b:

Let us set the proportion for the given lines.

Thus, we have;

$\frac{4}{5}=\frac{b}{5}$

$20=5b$

$4=b$

Thus, the value of b is 5.

Length of TW:

The length of TW is given by

$TW=5.6+4+4$

$TW=13.6$

Thus, the length of TW is 13.6

3 0

3 years ago

Line m is parallel to line n. Name a pair of corresponding angles. A. 2 and 5 B. 3 and 6 C. 1 and 7 D. 3 and 7

Sauron [17]

Answer:

C. 1 and 7

Step-by-step explanation:

7 0

3 years ago

Please answer questions 14-31 I’ll mark brainliest!!

makvit [3.9K]

From 14-21 you have to do it by a calculator and then put it between perfect numbers then minus the bigger perfect number by it and if needed graph on a number line

4 0

3 years ago

Factor completely: 16x2 − 81 A. (4x + 9) (4x − 9) B. 16x2 − 81 C. (4x + 9) (4x + 9) D. (4x2 + 9) (4x2 − 9)

ch4aika [34]

Answer:

A. (4x + 9) (4x − 9) is the correct answer.

6 0

4 years ago

Terry has 25 bills. He has ten-dollar bills and fifty-dollar bills

dexar [7]

Answer: He can have 12 fifty-dollars bills and 7 ten-dollar bills.

Step-by-step explanation:

12*50=700

7*10=70

_____+

770

3 0

4 years ago