All categories

3 years ago

Solve for x. x/7 = -3

Mathematics

1 answer:

PtichkaEL [24]3 years ago

5 0

x = -21

explanation: a trick i used was just do -3 times 7 and get my answer -21. if you are unsure if the answer is right just check your work with a calculator. -21 divided by 7 is -3 so -21 is the value of x. please mark brainliest !!

You might be interested in

You drive for 30 min at 100 km/h and then stop for 15 min. you then drive for 45 min and 80 km/h. you average speed for the enti

Rasek [7]

<span>So basically you drove 1/2 hour at 100 km/h which works out to a total travel distance of 50 km (you multiply a 1/2 by 100)

Then you drove for 3/4 hour at 80 Km/h which works out to a total travel distance of 60 km (multiply 3/4 by 80)

now you know that you traveled a total of 110 km

now add up all the times 30 + 15 + 45 = 90 minutes or 1.5 hours

now you know that you traveled a total of 110 km in 1.5 hours

so your average speed is 73.33 km/h for the entire trip</span>

4 0

3 years ago

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 27nft3. Which equation gives the volume o

inna [77]

Answer:

The volume of the sphere is $V=18\pi\ ft^{3}$

Step-by-step explanation:

we know that

The volume of cylinder is equal to

$V=\pi r^{2}h$

we have

$V=27\pi\ ft^{3}$

substitute

$27\pi=\pi r^{2}h$

simplify

$27=r^{2}h$

Remember that

A sphere and a cylinder have the same radius and height

The height of cylinder is equal to the diameter of sphere

h=2r

substitute

$27=r^{2}(2r)$

$13.5=r^{3}$ -----> equation A

The volume of the sphere is equal to

$V=\frac{4}{3}\pi r^{3}$

substitute equation A in the formula of the volume of sphere

$V=\frac{4}{3}\pi (13.5)$

$V=18\pi\ ft^{3}$

6 0

3 years ago

Read 2 more answers

If the mEDG = 25°, then find the measures of the following angles.

Serga [27]

Answer:

m/BGA=25%3 EGG=GB7 EGF=CE6 BGE=BAF9

3 0

3 years ago

Match the given equation with the verbal description of the surface:

san4es73 [151]

Match of the equation with the verbal description of the surface would be :

Equation 1 = C. plane

Equation 2 = F. Circular cylinder

Equation 3 = C. plane

Equation 4 = E. sphere

Equation 5 = A. cone

Equation 6 = E. Sphere

Equation 7 = F. Circular cylinder

Equation 8 = B. Eliptic or circular paraboloid

Equation 9 = A. cone

Hope this helps

5 0

3 years ago

A physical property of a solid use to describe its surface

xz_007 [3.2K]

A physical property of a solid could be smoth or hard

6 0

4 years ago