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Marina CMI [18]
3 years ago
15

Use mental math to solve the equation z/-12 = -5

Mathematics
1 answer:
Illusion [34]3 years ago
7 0
Z=60

because
z/-12 = -5
z= (-5)(-12)
z= 60
You might be interested in
Write and solve an equation to find the width of the box if its volume is 80 cubic centimeters. Then find its surface area.
Lelu [443]

Answer:

L=4.30cm

SA=  110.94cm^2

Step-by-step explanation:

Given data

Volume of box= 80 cm^3

We know that the volume of a box is given as

V= l^3

80=l^3

l= ∛80

l= 4.30cm

also the surface area of a box is given as

SA=2lw+2lh+2hw

SA= 2* 4.30* 4.30+2* 4.30* 4.30+ 2* 4.30* 4.30

SA= 36.98+36.98+36.98

SA= 110.94cm^2

4 0
3 years ago
Only answer if you actually want to help me please
mamaluj [8]

the answer is circle idk if it's right but it could be I'm in high school I've been through algebra 1 now in geometry

5 0
4 years ago
May you please help me.
Assoli18 [71]

Answer:

x=16

Step-by-step explanation:

multiply the 3 to cancel it out

now you have x+2=18

then you subtract by 2 to cancel it out

so now you are left with x=16

7 0
3 years ago
What are the 2 roots of the equation 2x^2-5x-3=0
seraphim [82]

Answer:

Hence, 3/2 and 1 are the roots of the equation.

5 0
3 years ago
A jeweler makes an
nadezda [96]

The number of snail shells used is 45 and the number of shark teeth used is 36 if the ratio of snail shells to shark teeth is 5:4.

According to the question,

We have the following information:

A jeweler makes an ocean-inspired necklace using a total of 72 snail shells and shark teeth. The ratio of snail shells to shark teeth is 5: 4.

Let's take the number of snail shells to be 5x and the number of shark teeth to be 4x.

So, we have the following expression:

5x+4x = 72

9x = 72

x = 72/9

x = 8

Number of snail shells = 5*9 = 45

Number of shark teeth = 4*9 = 36

Hence, the number of snail shells used is 45 and the number of shark teeth used is 36 if the ratio of snail shells to shark teeth is 5:4.

To know more about ratio here

brainly.com/question/20013093

#SPJ1

6 0
1 year ago
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