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2 years ago

How to subtract an integer

2 answers:

6 0

When you have a negative and your subtracting it to a number so for example 7-(–3)=10 because you can do KCC which stands for “keep change change” so u would keep the positive 7 the same but change the minus sign to plus and (-3) to a positive three. Hope that helps! :)

Evgesh-ka [11]2 years ago

3 0

If both signs are positive, the answer will be positive. Example: 14 - (-6) = 14 + 6 = 20.If both signs are negative, the answer will be negative. ... If the signs are different subtract the smaller absolute value from the larger absolute value.Is what I found

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If D varies directly with t and D is 105 when t is 3, find D when t is 8. 35 280 840

drek231 [11]

Answer:

280

Step-by-step explanation:

D = kt

105 = 3k

k = 35

D = 35t

D = 35(8) = 280

5 0

2 years ago

Read 2 more answers

Solve the linear expression 5(-3.4k-7)+(3k+21)

Ksivusya [100]

Our expression is below

$5(-3.4k-7)+(3k+21) = 0$

by solving it for the value of k

$(-17k-35)+(3k+21) = 0$

$-17k+3k-35+21 = 0$

$-14k-14 = 0$

$-14k = 14$

$k = \frac{14}{-14}$

$k = -1$

6 0

2 years ago

The amount of $180.00 is what percent greater than $135.00

olga nikolaevna [1]

Percent change = ((new value) - (old value))/(old value) × 100%
= (180 -135)/135 × 100%
= 33 1/3%

180 is about 33% greater than 135.

8 0

2 years ago

The diameter of a wheel from a bicycle is 66 CM about how far will the wheel travel in one turn

castortr0y [4]

Answer:

If the outside diameter of the wheel is 66cm, it will travel 1 wheel circumference. Circumference is Pi x diameter = 3.14 x 66 = 207.24 cm.Step-by-step

Explanation:

If the diameter is of the wheel (without the tire) you need to calculate the actual diameter from the outermost edge of the tire.

8 0

1 year ago

A farmer wants to fence in a rectangular field that encloses 3600 square feet. One side of the field is along a river and does n

andriy [413]

Answer:

C(x) = $\$3.50(\frac{x^2+7200}{x})$

Step-by-step explanation:

Data provided in the question:

Area of the field = 3600 square feet

Fencing charges = $3.50 per foot

Let the side along the river be 'x' feet and the other side of the 'B'

now,

Area of rectangle = Bx = 3600 square feet

B = $\frac{3600}{x}$ feet

and total length to be fenced = x + 2B

therefore,

Total cost of fencing = Fencing charges × total length to be fenced

Total cost of fencing = $3.50 × ( x + 2B )

substituting the value of B from (1)

Total cost of fencing, C(x) = $\$3.50(x+2\times\frac{3600}{x})$

C(x) = $\$3.50(\frac{x^2+7200}{x})$

4 0

2 years ago