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Ahat [919]
3 years ago
13

What is the value of x in the equation 3(2x + 4) = −6? (4 points)

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
6 0

Answer:

x = - 3

Step-by-step explanation:

Given

3(2x + 4) = - 6 ( divide both sides by 3 )

2x + 4 = - 2 ( subtract 4 from both sides )

2x = - 6 ( divide both sides by 2 )

x = - 3

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The speed limit on a highway is 60 miles per hour. A vehicle travels for 2.2 hours on the highway and covers 165 miles. By how m
elena-s [515]

Answer:

15 miles over

Step-by-step explanation:

r=d/t

r= 165/2.2

rate=75

75 miles - 60 miles=

15 miles

5 0
3 years ago
Find the surface area of the prism.<br> 7 mm<br> 4 mm<br> 5 mm
dolphi86 [110]

Answer:

Since there are 2 sides, a front & back, and a top & bottom, you must find the surface area of each of those 3 surfaces and multiply by 2.

Step-by-step explanation:

The formula would be:

Top & Bottom - 5 × 4 (multiply by 2 for top AND bottom)

Front & Back - 5 × 7 (multiply by 2 for front AND back)

Sides - 4 × 7 (multiply by 2 for BOTH sides)

___________________________________________________

Once you find the 3 surface areas, add the areas all together for the total. (I did not show the answer because that is for you to do on your own.)

Ex. Top & Bottom + Front & Back + Sides

7 0
3 years ago
Penny is counting the days until her grandma comes to visit. There are 98 days left. How many weeks are left until Penny's grand
Lorico [155]
Create a unit rate.
1 wk/ 7 days
x wk/ 98 days
Cross multiply.
98=7x
Solve the equation.
14=x
14 weeks until her grandmother visits
3 0
3 years ago
Use parentheses to make 5+4×3×3
kherson [118]
The aNSWER IS 41..AM I RIGHT?
3 0
3 years ago
Read 2 more answers
Triangle A B C is shown. Angle A C B is a right angle. An altitude is drawn from point C to a point on side A B to form a right
mars1129 [50]

Answer:

BC=15\ units

Step-by-step explanation:

see the attached figure to better understand the problem

In the right triangle ABC

Applying the Pythagorean Theorem

AB^2=AC^2+BC^2

substitute the given values

17^2=8^2+BC^2

solve for BC

BC^2=17^2-8^2

BC^2=225

BC=15\ units

5 0
3 years ago
Read 2 more answers
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