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Irina-Kira [14]
2 years ago
9

What is -3/4+2 3/4 O 3 1/2 O 3 3/4 O 2 1/2 O 2​

Mathematics
1 answer:
sveticcg [70]2 years ago
3 0

Answer:

D. 2

Step-by-step explanation:

Common denominator is already presented which is 4.

-3/4 and 3/4 cancel each other out.

you can also convert to decimal form -3/4 + 2 3/4 is the same as:

-0.75 + 2.75 = 2.

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Which expression is the best estimate of 1/5 times 24.5
butalik [34]

Answer:

B

Step-by-step explanation:

1.2 x 3.7 nearest tenth

1 x 4 nearest whole number

B

8 0
2 years ago
Help Please? :)
Usimov [2.4K]
1.) 5+4/7(21+3x)=41
    5+ 12+12/7x= 41
    12/7x= 41-12-5
     12/7x= 24
     x= 24/ (12/7)
     x=14

2.) x+15.09= -2.57
     x = -2.57-15.09
     x= -17.66
8 0
3 years ago
What is 4÷140 <br><img src="https://tex.z-dn.net/?f=4%20%5Cdiv%20140" id="TexFormula1" title="4 \div 140" alt="4 \div 140" align
Katyanochek1 [597]
140/4 is 35
4/140 is 0.028571
3 0
2 years ago
Read 2 more answers
What is the answer to 8 − (−11)
o-na [289]

Answer:

Step-by-step explanation:

19

6 0
3 years ago
What is the volume of a triangular pyramid that has a base area of 8.2 square centimeters and a height of 4
Harman [31]

Answer:

\boxed {\boxed {\sf V \approx 10.9 \ cm^3}}

Step-by-step explanation:

The volume of a triangular pyramid can be found using the following formula:

V=\frac{1}{3} A_b\times h

Basically, we have to multiply 1/3, the height, and the base area.

We know that the base area is 8.2 square centimeters and the height is 4 centimeters.

A_b=8.2 \ cm^2 \\h= 4 \ cm

Substitute the values into the formula.

V=\frac{1}{3} (8.2 \ cm^2)\times (4 \ cm)

Multiply 8.2 square centimeters and 4 centimeters.  

  • 8.2 cm² * 4 cm= 32.8 cm³

V=\frac{1}{3} (32.8 \ cm^3)

Multiply 1/3 and 32.8 cubic centimeters.

V= 10.9333333 \ cm^3

Round to the nearest tenth.

The 3 in the hundredth place tells us to leave the 9 in the tenth place.

V \approx 10.9 \ cm^3

The volume of the triangle pyramid is about 10.9 cubic centimeters.

5 0
3 years ago
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