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valentinak56 [21]
3 years ago
13

12 + z = 15 Does anyone know thisplease

Mathematics
1 answer:
belka [17]3 years ago
3 0

Answer:

3

Step-by-step explanation:

15

-

12

-----

3

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Mr. Erickson will be living in the forest
aliina [53]

<em />\huge{\boxed{60\ \text{ft}^{3}}}<em />

<em>We will assume the tent is in the shape of a triangular prism.</em>

The volume of a triangular prism can be found with the following formula, where b is the width at the base, h is the height, and l is the length.

V=\frac{1}{2}bhl

Substitute in the known values.

V=\frac{1}{2}*5*3*8

Simplify — use multiplication.

V=\frac{5}{2}*3*8

V=\frac{15}{2}*8

V=\frac{120}{2}

Simplify — use division.

V=\large{\boxed{60\ \text{ft}^{3}}}

The volume — or in this case, the amount of living space — is 60\ \text{cubic feet}.

7 0
3 years ago
Tyree bought a book for $49.62. he sold it for $52.10 what is the percent change in the price of the book
Natali [406]
Ur answer is 2% because u minus it and u find the percentage
4 0
3 years ago
Read 2 more answers
(question is on picture linked)
nalin [4]

here y+13=15

so we got y=2

then y+13+x+12=30

then we will get x=3

7 0
3 years ago
You have an allowance to spend on lunch this week. You will spend the same amount each day,and you get to keep whatever is left
Naily [24]

Answer:

The total allowance is $18.5, and the amount spent daily is $3.2

Step-by-step explanation:

let T and x represent the total allowance and the amount spent daily respectively.

It was started that the amount remaining after 2 days is $12.10 , which implies the person has spend an equal amount for 2 days

T - 2x =12.10       (equation 1)

It was started that the amount remaining after 5 days is $2.50  , which also implies the person has spend an equal amount for 5 days

T - 5x =2.5       (equation 2)

subtract equation 2 from 1

T - 2x -( T - 5x ) = 12.10 -2.5

T - 2x -T + 5x = 9.6

3x =9.6

Divide both side by 3

x = 9.6/3 =3.2

from equation 1

T - 2x =12.10  

T = 12.10 + 2x = 12.10 + 2*3.2

= 12.10 + 6.4 = 18.5

5 0
3 years ago
Read 2 more answers
One kilometer is 1000 meters complete the table 250 meters equals how many kilometer
Misha Larkins [42]

0.25 km is the answer.

1km = 1000m

x = 250

x = 250/1000

x = 0.25

6 0
3 years ago
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