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Tanya [424]
3 years ago
9

What does she need to score on the fifth teat to get exactly a mean of 90?

Mathematics
1 answer:
loris [4]3 years ago
8 0
I think I can bravely ignore the Freudian slip and solve this one.

-- If the mean of 5 tests is 90, then all 5 scores add up to (5 x 90) = 450

-- The sum of her first 4 scores is (95+ 90 + 85 + 95) = 365

-- If she has one more test to average 90, then she needs
to score (450 - 365) = <u>85</u> on it.

That looks like choice 'G '.
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What items did she buy
ipn [44]

Answer:

Cap, purse, and dress

Step-by-step explanation:

235+490+95= 820

Hope that helps :D

<u><em>-Jazz</em></u>

4 0
3 years ago
How many solutions does the following equation have?
KatRina [158]

Answer:

B

Step-by-step explanation:

-5z +1 = -2z +10

-3z = 9

z=9/-3

Z= -3

7 0
3 years ago
Use the equation y = 4x to answer the questions.
Kamila [148]
The slope is 4 or you can think of it as 4/1 if that helps. Remember slope intercept form is y=mx+b.
8 0
3 years ago
Read 2 more answers
1. What is the greatest multiple of 7 that is less than 60?
hodyreva [135]
the first one is 56
3 0
3 years ago
Read 2 more answers
Y = (x - 1) to the second power + 2
Nikolay [14]
Y = (x - 1)² + 2
y = (x² - x - x + 1) + 2
y = (x² - 2x + 1) + 2
y = x² - 2x + (1 + 2)
y = x² - 2x + 3
x² - 2x + 3 = 0
x = <u>-(-2) +/- √((-2)²  4(1)(3))</u>
                     2(1)
x = <u>2 +/- √(4 + 12)</u>
                2
x = <u>2 +/- √(16)
</u>             2<u>
</u>x = <u>2 +/- 4
</u>           2<u>
</u>x = 1 <u>+</u> 2
x = 1 + 2      x = 1 - 2
x = 3            x = -1
y = x² - 2x + 3
y = (3)² - 2(3) + 3
y = 9 - 6 + 3
y = 3 + 3
y = 6
(x, y) = (3, 6)
or
y = x² - 2x + 3
y = (-2)² - 2(-1) + 3
y = 4 + 2 + 3
y = 6 + 3
y = 9
(x, y) = (-1, 9)
5 0
3 years ago
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