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kondaur [170]
2 years ago
9

What does 1/3+1/5 equal

Mathematics
2 answers:
nlexa [21]2 years ago
8 0

Answer:

8/15

Step-by-step explanation:

The common denominator is 15 so you have to multiply the first number by 5 and the second number by 3 to get a denominator of 15.

Hope this helps!

Paha777 [63]2 years ago
8 0

Answer:

8/15

Step-by-step explanation:

We need to get a common denominator of 15

1/3 *5/5 = 5/15

1/5 *3/3 =3/15

5/15+3/15

8/15

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If 4 blocks weigh 28 ounces how many blocks weigh 70 ounces
Sloan [31]

Answer:

10 blocks.

Step-by-step explanation:

Find the unit rate.

\frac{28}{4}=\frac{7}{1}=\frac{70}{10}

Therefore, 10 blocks weigh 70 ounces.

3 0
3 years ago
Read 2 more answers
The polynomial x 3 + 5x 2 - ­57x -­189 expresses the volume, in cubic inches, of a shipping box, and the width is (x+3) in. If t
Ipatiy [6.2K]
V=x^3+5x^2-57x-189
Width: W=(x+3) in = 15 in →x+3=15
Solving for x:
x+3-3=15-3→x=12

With x=12 the Volume would be:
V=(12)^3+5(12)^2-57(12)-189
V=1,728+5(144)-684-189
V=1,728+720-684-189
V=1,575

V=W*D*H
Depth: D
Height: H
with H>D

V=1,575; W=15
Replacing in the equation above:
1,575=15*D*H
Dividing both sides by 15
1,575/15=(12*D*H)/15
105=D*H
3*5*7=D*H
D<H
If D=5→H=3*7→H=21
If D=7→H=3*5→H=15

Answer: Option <span>C. height: 21 in. depth: 5 in.
</span>
Please, see the attached file for another form to solve the problem

4 0
3 years ago
Read 2 more answers
Evaluate the expression on the picture below
Anon25 [30]
That math problem evaluated is 41
3 0
3 years ago
Read 2 more answers
Find the perimeter of OQR if OQ=6.5.<br> A.<br> 6.1<br> B.<br> 12.2<br> C.<br> 13<br> D.<br> 19.1
Svetach [21]

ANSWER


The correct answer is 19.1


EXPLANATION


The perimeter of triangle OQR is the sum of the distance around the triangle.



Thus,


Perimeter=|OQ|+|OR|+|RQ|



We can observe that two of the angles are equal.



The angles that are equal measures 62° each.



Therefore triangle OQR is an isosceles triangle. This means that



|OQ|=6.5=|OR|



Hence,



Perimeter=6.5+6.5+6.1




Perimeter=19.1 units.


3 0
2 years ago
Read 2 more answers
-3 (5 g +1) + 8 g
Komok [63]

Answer:

-7g-3

Step-by-step explanation:

in order to evaluate for this mathematical expression, we need to consider the negative sign carefully and then open the bracket then evaluate.

<u>solutuion</u>

-3 (5 g +1) + 8 g

-15g -3 + 8g

-15g +8g -3

-7g-3

8 0
2 years ago
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