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Readme [11.4K]
3 years ago
12

what score must a student make on an algebra test to have an average score of 90 for the grading period. If his other test score

s are 88, 84, and 92?
Mathematics
1 answer:
Alborosie3 years ago
5 0
At least a 96 is needed for a 90
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The goal of a toy drive is to donate more than 1000 toys. The toy drive already has collected 300 toys. How many more toys does
Brilliant_brown [7]

Answer:

Let t be the number of toys.

Since, the toy drive already has collected 300 toys

⇒ t+ 300

Also, it is given that the goal of a toy drive is to donate more than 1000 toys.

We get an inequality:

⇒t + 300 > 1000

Solve an inequality:  

t + 300 > 1000

Subtract 300 from both sides we get

t + 300 -300 > 1000-300

Simplify:

t > 700

Therefore, more than 700 toys does the toy drive need to meet its goal.

An inequality is; t + 300 > 1000 ;  t > 700




7 0
3 years ago
Determine whether the solids are similar.
alexandr402 [8]

Answer:

  The solids <u>are</u> similar.

Step-by-step explanation:

Every linear dimension of the larger solid is twice that of the smaller solid. Since the scale factor is the same in every direction, the figures <u>are similar</u>.

7 0
4 years ago
Simplify 4х+ 2-
exis [7]

Answer:

3x - 2

Step-by-step explanation:

4x + 2 -  \frac{ {x}^{2}  + x - 12}{x - 3}  \\  \\  = 4x + 2 -  \frac{ {x}^{2}  + 4x  - 3x- 12}{x - 3}  \\  \\  =  4x + 2 -  \frac{ {x}(x  + 4)  - 3(x  + 4)}{x - 3}  \\  \\  = 4x + 2 -  \frac{ (x  + 4)   \cancel{(x- 3)}}{\cancel{(x- 3)}}  \\  \\  = 4x + 2 - (x + 4) \\  \\  = 4x + 2 - x - 4 \\  \\  = 4x - x + 2 - 4 \\  \\  = 3x - 2

7 0
3 years ago
Is mLBAF = mLCEF? Explain.<br><br><br><br><br><br><br> Than you
saw5 [17]

\huge \bf༆ Answer ༄

The Angles BAF and CEF are equal to one another, because they form pair of Alternate Interior Angles ~

So, the Correct choice is ~

  • Yes, They are Alternate interior Angles

꧁  \large \sf{itz0kaul } \: ꧂

3 0
2 years ago
Craig bought a treadmill for $400. He estimates that the annual costs to maintain the machine will be $36. Which rational functi
Lorico [155]

Given that Craig bought a treadmill for 400 dollars.

Useful life of the macine = x

Hence annual purchase cost spread over x years will be 400/x per year.

In addition, there is an annual maintenance cost of 36 dollars.

Hence Average annual cost in dollars = purchase cost per year+maintenance cost per year

= \frac{400}{x} +36 \\= \frac{400+36x}{x}

Hence answer for rational function is

either \frac{400}{x} +36[tex]Or [tex]\frac{400+36x}{x}

7 0
3 years ago
Read 2 more answers
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