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nata0808 [166]
2 years ago
14

Learn with an example

Mathematics
1 answer:
nirvana33 [79]2 years ago
7 0
B=8.8,steps shown in the photo I shared. I hope it made sense

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In a map scale of 2.5 cm : 400 m, the distance between the supermarket and the gas station is 5.5 cm. Work out the real distance
Marianna [84]

Answer:

880m

Step-by-step explanation:

2.5cm = 400m

1cm = 400/2.5

=160m

5.5cm = 160 × 5.5

=880m

7 0
3 years ago
33,210 divide by (-9)=
soldier1979 [14.2K]
The answer is -3690.
3 0
3 years ago
Read 2 more answers
If the coordinate of A is (0,-2) and the coordinate of B is (10,-6), then the midpoint of AB is (______).
balu736 [363]

Answer:

5, -4

Step-by-step explanation:

midpoint = x1 + x2/2 ,y1 + y2/2

= 0 + 10 /2 , -2 + -6/2

= 10/2 , -8/2

midpoint = 5, -4

4 0
3 years ago
8 11/15= 7 ?/15 help me
just olya [345]

Answer:

7 \frac{26}{15}

Step-by-step explanation:

8 \frac{11}{15} = 7 \frac{?}{15}

Remember the multiply and add rule or improper fractions. To convert from a mixed number to an improper fraction, one must multiply the number part of the mixed number by the bottom (denominator) on the fraction. Then one must add that to the numerator (top) of the fraction. Since 7 is 1 less than 8, then one would have to multiply 15 by 1, and add it to 11, to get the value on top of 7 \frac{?}{15} The value would be;

7 \frac{26}{15}

3 0
3 years ago
A scrap metal buyer pays $2.79 per square foot of steel.
RUDIKE [14]

Answer:

a. You can earn about $245

b. You will earn about $35 less if the lid is missing

Step-by-step explanation:

a. To solve this we first need to calculate the surface area of the drum, which has a cylinder shape, therefore it's surface area is given by:

surface area = 2*(pi*r² + pi*r*h)

r = d/2 = 4/2 = 2 ft

surface area = 2*(pi*2² + pi*2*5)

surface area = 2*(4*pi + 10*pi) = 2*14*pi = 28*pi ft²

surface area = 87.96 ft²

Since each square foot pays $2.79, then the total value of the drum is:

value = surface area * 2.79 = 87.96*2.79 = $245.42

b. If the lid of the drum is missing, then the surface area is given by:

area drum with no lid = surface area - lid area

area drum with no lid = 87.96 - pi*(2)² = 87.96 - 12.566 = 75.394 ft²

value = area drum with no lid * 2.79

value = 75.394 * 2.79 = 210.35

loss value = 245.42 - 210.35 = $35.07

7 0
3 years ago
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