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3 years ago

NEED HELP MATH!!! 7TH GRADE

Mathematics

1 answer:

Semmy [17]3 years ago

8 0

The scale drawing's measurements will be 1 inch by 0.8 inch.

The scale is 1 in: 10 feet; because the deck's real width is 10 ft, the scale can read 1 inch. To evaluate the width: 1/10 = x/8

Cross multiply:
1*8 = 10*x
8 = 10x

Divide both sides by 10:
8/10 = 10x/10
0.8 = x

The scale drawing's width would be 0.8 inches.

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10. What's the area of a slice of pizza from a large pizza with radius 9 inches cut into 6 slices?

Kipish [7]

Answer:

Step-by-step explanation:

A= r(pi)^2

A= 9 pi ^2

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4 years ago

The sum of three certain consecutive numbers is 240. Find the 3 numbers.

BartSMP [9]

Answer:79 , 80 , 81

Step-by-step explanation:What three consecutive integers have a sum of 240? What three consecutive integers have a sum of 240? Which means that the first number is 79, the second number is 79 + 1 and the third number is 79 + 2. Therefore, three consecutive integers that add up to 240 are 79, 80, and 81.

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3 years ago

Please answer this correctly

RUDIKE [14]

Answer:

$11\dfrac{3}{8}\text{cm}$

Step-by-step explanation:

$1\dfrac{5}{8}+2\dfrac{9}{16}+2\dfrac{9}{16}+4\dfrac{1}{8}=11\dfrac{3}{8}$

Hope this helps!

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3 years ago

At the beginning of the year agent savings account balance was $28. Each week he deposits another $15 into that account and it d

igomit [66]

Account balance is not proportional to the number of weeks.

4 0

3 years ago

If AB = 8 and BC = 24, then AC =<br><br> If AB = 17 and AC = 68, then BC =

Kryger [21]

Answer:

(i) The length of AC is 32 units, (ii) The length of BC is 51 units.

Step-by-step explanation:

(i) Let suppose that AB and BC are collinear to each other, that is, that both segments are contained in the same line. Algebraically, it can be translated into this identity:

$AC = AB + BC$

If we know that $AB = 8$ and $BC = 24$ , then:

$AC = 8 + 24$

$AC = 32$

The length of AC is 32 units.

(ii) Let suppose that AB and AC are collinear to each other, that is, that both segments are contained in the same line. Algebraically, it can be translated into this identity:

$AC = AB + BC$

$BC = AC - AB$

If we know that $AC = 68$ and $AB = 17$ , then:

$BC = 68-17$

$BC = 51$

The length of BC is 51 units.

6 0

3 years ago