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sergiy2304 [10]
3 years ago
8

Can someone help me please!!

Mathematics
1 answer:
Reika [66]3 years ago
3 0
Answer:

X = 12

4x + 12 = 5x
subtract 4x on each side and you're left with x=12
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There are 620 students and 31 teachers at the Turner Middle School.There are 950 students and 38 teachers at the Green Middle Sc
kicyunya [14]
We begin with the <span> Turner Middle School:
Ratio of students to teachers: </span>\frac{620}{31}
Green Middle School:
Ratio of students to teachers: \frac{950}{38}
Let check that we cannot form a proportion:
\frac{620}{31}=20\text{ and } \frac{950}{38}=25
The two ratios are not equals so we cannot form a proportion. 
Let x be the number of <span>teachers that Green have to hire in order to make the two ratios equal. We get the equation:
</span>\frac{950}{38+x}=\frac{620}{31}\text{ and we solve the equation like this:}\\38+x=\frac{950\times31}{620}=47.5 \text{ and then:}\\x=47.5-38=9.5

<span>The Green school need to hire 9 teachers. 

Part-to-whole ratio:
</span>Turner Middle School:
 \frac{620}{31+620}
Green Middle School:
\frac{950}{38+950}
8 0
3 years ago
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A sawdust pile has a base diameter of 35 feet when it’s height is 30 feet, find the volume of the pile when it is at 50 feet tal
ladessa [460]

Answer:

The volume of the sawdust pile is 16041.7 feet.

Step-by-step explanation:

The sawdust pile formed is in the form of a cone.

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V=\frac{1}{3}\ \pi r^{2}\ h

The information provided is:

<em>r</em> = radius of the base = diameter ÷ 2 = (35 ÷ 2) feet

<em>h</em> = height = 50 feet

Compute the volume of the sawdust pile as follows:

V=\frac{1}{3}\ \pi r^{2}\ h

   =\frac{1}{3}\times \frac{22}{7}\times (\frac{35}{2})^{2}\times 50\\\\=16041.6667\\\\\approx 16041.7\ \text{feet}

Thus, the volume of the sawdust pile is 16041.7 feet.

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Answer:

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Step-by-step explanation:

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3 years ago
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A term is a number or variable in a math sentence (such as an expression or equation). 

Example:

a + 2b + c + 5

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4 0
3 years ago
I like risking my points for hard homework
ELEN [110]

Answer:

The triangle and the square have the same area because they both have four squares

Step-by-step explanation:

The square has four that are easily shown but the triangle has one full one but when two are split together like some of them when you put the two together they equal one whole.

Have a wonderful day/night/afternoon

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