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Mkey [24]
3 years ago
10

2x+7=20 can someone please help with this

Mathematics
2 answers:
Helen [10]3 years ago
8 0

Answer: 6.5

Step-by-step explanation:

20 - 7 is 13

13 divided by 2 is 6.5

salantis [7]3 years ago
3 0

Answer:

6.5

Step-by-step explanation:

first subtract 7 from both sides

2x=13

next divide both sides by 2

x=6.5

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A student has 2 pounds of cereal. If the student eats 1/6 pound of cereal each day, how many days can the student eat cereal
harina [27]

Answer:

12 days

Step-by-step explanation:

1/6 per day

in 6 days- 1 pound

6x2=12 days=2 pounds

hope this helped :)

7 0
2 years ago
Read 2 more answers
A three-dimensional model of lucia’s apartment is shown. to cool the whole apartment, an air conditioner must provide 2.5 btus p
SashulF [63]

The number of btus which are needed to cool Lucia’s apartment shown in the three-dimensional model are 20,400 btus.

<h3>What is of volume of rectangular prism?</h3>

Volume of rectangular prism is the amount of quantity, which is obtained in it in the 3 dimensional space.

Volume of a rectangular prism is the product of its width, height and length.

V=w\times h\times l

Here, (w) is the width of the base (l) is the length and (h) is the height of the rectangular prism.

A three-dimensional model of Lucia’s apartment is shown. The image is attached below for the apartment. The three section are there in the apartment. The volume of this apartment is,

V=[(20\times12)+(20-9)\times16+(20\times20)]\times10\\V=8160\rm\; ft^3

To cool the whole apartment, an air conditioner must provide 2.5 btus per cubic foot. To cool, the 8160 cubic foot apartment the btus needed are,

n=8160\times2.5\\n=20400\rm\; btus

Hence, the number of btus which are needed to cool Lucia’s apartment shown in the three-dimensional model are 20,400 btus.



Learn more about the volume of a rectangular prism here;

brainly.com/question/4016105

5 0
2 years ago
Pls help friend memeeeememmeme
abruzzese [7]
D, volume = widthxheightxlength
8 0
3 years ago
Read 2 more answers
Terrence signed up for the Safe Venture driving school. He will spend 10 hours driving with an instructor and will also attend w
choli [55]
The answer should be C. 2w + 10 = 26
6 0
2 years ago
Read 2 more answers
Can somebody help me?
lubasha [3.4K]

Answer:

13, 13√3, 26

Step-by-step explanation:

30 60 90 right triangle

Ratio of short leg : long leg : hypo = a : a√3 : 2a

Given short leg = 13, so long leg = 13√3 and hypo = 13 * 2 = 26

Answer:

13, 13√3, 26

8 0
3 years ago
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