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Vsevolod [243]
3 years ago
6

Samuel made a list of his test scores: 88, 100, 92, 80, 85, 94, and 90. What is the lowest test score he can get on his next tes

t to have mean score of 90?
Mathematics
1 answer:
yulyashka [42]3 years ago
4 0

Answer:

he needs to get a 91 to have a mean score of 90

Step-by-step explanation:

add up all the known scores to get 629

let 's' = lowest test score

(629 + s) ÷ 8 = 90   [we divide by 8 because there are 7 known and 1 unknown score)

cross-multiply to get:

629 + s = 720

s = 720-629

s = 91

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Chloe biked the same distance each day for 9 days. If she traveled 513 kilometers altogether, how many kilometers did she travel
kow [346]

Answer:

57 kilometers a day.

Step-by-step explanation:

I just divided 513 by 9 and got that.

5 0
3 years ago
Max and Jenna are each making pastries for their family reunion. Max is making beignets with a special type of flour. For every
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 Jenna can make 48 servings 
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Write the slope intercept form of the equation of the line through the given point
ozzi

Answer:

y =  -\frac{3}{4}x

Step-by-step explanation:

slope-intercept form: y = mx + b

Given: slope(m) = -\frac{3}{4}, point (4, -3)

We already have the value of m, but we need to find the value of b. To do this, input the given values of the slope and the point into the equation:

-3 =  -\frac{3}{4}(4) + b

Solve for b:

-3 =  -\frac{3}{4}(4) + b

-3 = -3 + b

0 = b

The value of b is zero. We can now write the equation:

y =  -\frac{3}{4}x + 0

y =  -\frac{3}{4}x

The equation written in slope-intercept form is: y =  -\frac{3}{4}x

8 0
3 years ago
The Smith family made a 12-pound turkey for dinner. If each person will eat of a pound, how many
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3 0
3 years ago
Read 2 more answers
Help meeeeeeeeeeeeeeeeeee <br><br> &gt;_
nignag [31]

Answer:

good news, the second one is relatively easy because it can be factored to (2x+1)(2x-3) which means that number two has solutions of -1/2 and 3/2

but for number one you have to either use the quadratic equation cause I've tried using synthetic division or just use the second equation to derive the first solutions so I tried move the graph up by two units and found that the intercepts are approximately (1+-√2)/2 or 1/2+-1/√2 for 4x^2-4x-1

7 0
3 years ago
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