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3 years ago

Evaluate the following expression for y=25 and g=58(y÷g)-4y÷g+9

Mathematics

2 answers:

Monica [59]3 years ago

8 0

Answer:

8(25/5) - 4(25) / 5 + 9

40 - 100 / 5 + 9

40- 20+9

20 + 9

Step-by-step explanation:

remember PEMDAS. First parenthesis, them exponents (there ar eno ecponents or parenthesis here) then mulitiplication or division (whichever is first) then subtraction or addition (whichever is first in the equation)

Lorico [155]3 years ago

7 0

Answer:

Step-by-step explanation:

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161/8-54/7 How would I set this problem up.

andrew11 [14]

Answer:

12/23/56

Step-by-step explanation:

5 0

3 years ago

The volume of a rectangular prism is 75 cubic inches. The height is 3 inches.

mylen [45]

Answer:

A) 5 in. long and 5 in. wide

Step-by-step explanation:

Given:

Volume of a rectangular prism = 75 cubic inches

Height of prism = 3 inches

Volume of a rectangular prism is given by = $l\times w\times h$

where $l$ representslength of base, $w$ represents width of base and $h$ represents height of the prism.

We will check the choices given by finding the volume for the given dimensions of length and width while height remains the same and see if it matches with the given volume of the prism.

A) $l=5\ in$ $w=5\ in$

Volume of prism = $5\times 5\times 3=75\ in^3$

B) $l=10\ in$ $w=2\ in$

Volume of prism = $10\times 2\times 3=60\ in^3$

C) $l=5\ in$ $w=4\ in$

Volume of prism = $5\times 4\times 3=60\ in^3$

D) $l=15\ in$ $w=5\ in$

Volume of prism = $15\times 5\times 3=225\ in^3$

So, we see that the dimensions given in option A would give the volume of prism = 75 cubic inches.

4 0

4 years ago

4. plz show ur work

marissa [1.9K]

Percent Error =
$( \frac{ |experimental \: value - accepted \: value| }{accepted \: value} ) \times (100)$
So, Ari's experimental value is ,
$\frac{2.49g/ {cm}^{3} + 2.56g/ {cm}^{3} +2.72g/ {cm}^{3} }{3} =2.59g/ {cm}^{3} (average)$
The accepted value is,
$2.65g/ {cm}^{3}$

Here's The Work
$( \frac{ |2.59g/ {cm}^{3} -2.65g/ {cm}^{3} | }{2.65g/ {cm}^{3} } ) \times (100) = 2.26 \: percent \: of \: error$
Ari's Average Measurements Have An Percent Error Of 2.26%

6 0

3 years ago

A mountain is in the shape of a cone whose height is about 3.7 kilometers and whose base radius is about 3 kilometers. Approxima

Lelu [443]

Answer:

34.54 $km^{3}$

Step-by-step explanation:

According to the scenario, computation of the given data are as follows,

Height (h) = 3.7 km

Base radius (r) = 3 km

We can calculate the volume of mountain by using following formula,

So, volume of cone = (1/3)π $r^{2}$ h

By putting the value in the formula, we get

= (1/3) π × $3^{2}$ × 3.7

= 11.1π

= 34.54 $km^{3}$

Hence, the volume of the mountain is 34.54 $km^{3}$ .

7 0

3 years ago

How many times do you have to regroup to subtract 847 -268

navik [9.2K]

Answer:

= 3 R 43

= 3 43/268

847 divided by 268 equals

3 with a remainder of 43

5 0

3 years ago

Evaluate the following expression for y=25 and g=58(y÷g)-4y÷g+9​

Evaluate the following expression for y=25 and g=58(y÷g)-4y÷g+9