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3 years ago

8 + (-7) - (7) = 8 + 7 + (-4)

Mathematics

1 answer:

OlgaM077 [116]3 years ago

7 0

Answer:

The inequality is false and equals -14=3

Step-by-step explanation:

You want to start by cancelling equal terms on both sides of the equation which means getting rid of both 8's. You are left with (-7)-(7)=7+(-4).

From here you want to solve both sides meaning adding -7-7 because both terms are negative they will combine, and the other side which is -7+4. They are opposite terms so you will subtract. This leaves you with -14=3 which is false.

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liberstina [14]

Answer:

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Step-by-step explanation:

perpendicular slope is opposite and reciprocal

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3 years ago

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3 years ago

Flying against the jetstream, a jet travels 4960 miles in 8 hours. Flying with the jetstream, the same jet travels 2940 miles in

oksian1 [2.3K]

Answer:

Velocity of jet in still air is 800mph hour and velocity of wind is 180mph

Step-by-step explanation:

Let the velocity of jet in still air be x miles per hour and velocity of wind be y miles per hour.

#Jet's velocity against jet-stream is:

$v_i=\frac{4960}{8}\\\\=620\ mph$

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$v_{ii}=\frac{2940}{3}\\\\=980\ mph$

#The velocity against jet-stream is x-y and with jet-stream is x+y:

$x-y=620\\\\x+y=980\\\\\#add \ the \ two \ equations\ to \ eliminate \ y\\\\2x=1600\\\\x=800\\\\y=980-800=180$

Hence,velocity of jet in still air is 800 mph hour and velocity of wind is 180 mph.

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3 years ago

The sales tax in your city is 8.8\%8.8%8, point, 8, percent, and an item costs \$63$63dollar sign, 63 before tax.

Kipish [7]

Convert the tax rate from a percent to a decimal number by moving the decimal point 2 places to the left.

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Now multiply the price of the item by the tax rate:

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4 years ago

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cluponka [151]

Answer:

Answer:C = 8

Answer:C = 8Step-by-step explanation:

-2(4c+16)^1/4+2=-2

Move the constant to the right and change the sign

-2(4c+16)^1/4= -2-2

transform expression

$- 2 \sqrt[4]{4c - 16} = - 4$

Divide each side by -2

$\sqrt[4]{4c - 16 } = 2$

raise both side of the equation by power of 4

4c-16=16

move constant to the right and change the sign

4c=16+16

4c=32

THEN DIVIDE BOTH SIDES BY 4

C = 8

5 0

3 years ago

8 + (-7) - (7) = 8 + 7 + (-4)​

8 + (-7) - (7) = 8 + 7 + (-4)