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3 years ago

11

Sammy scored an 82% on his first test of the 9 weeks. Will a score of 38 out of 50 on the second test help or hurt his grade. Wh

y?

1 answer:

Tatiana [17]3 years ago

7 0

Answer:

Hurt

Step-by-step explanation:

A 38/50 is equal to a 74/100

(74%) 74 is lower than his first score of 82 so it will hurt his grade and bring it down

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Angles and transversals thank you

faltersainse [42]

Answer:

#11-13: 118 , 97 , 62

#7-10: 92 , 125 , 56 , 130

Step-by-step explanation:

#11. Supplementary angles (A + B = 180)

(n + 7) + (3n - 47) = 180
n = 55
<ABC = 3(55) - 47 = 118 degrees

#12. Supplementary angles

83 + x = 180
x = 97
<ABC = 97 degrees

#13. Congruent angles (A = B)

(8x - 34) = (5x +2)
x = 12
<DEF = 5 (12) + 2 = 62 degrees

#7. Congruent angles

(3x +23) = 4x
x = 23
<ABC = 4(23) = 92 degrees

#8. Congruent angles

5x = (3x + 50)
x = 25
<MPQ = 3(25) + 50 = 125 degrees

#9. Congruent angles

(a + 28) = 2a
a = 28
<MNP = (28) + 28 = 56 degrees

#10. Congruent angles

5y = (2y + 78)
y = 26
<WXZ = 5(26) = 130 degrees

I hope this helps!

7 0

2 years ago

Write the following number as ratios of integers

s2008m [1.1K]

Our goal here is to somehow "surgically remove" the repeating part of the number, so let's start by putting the original value in a variable and messing around with it a bit.

We'll let $x=7.\overline{6}$ . We want to cut the $0.\overline{6}$ bit off completely, so let's create the scalpel that'll let us do that. If $x=7.\overline{6}$ , then we can also say that $10x=76.\overline{6}$ . Maybe I was lying a bit: the $x$ is our real scalpel here, and $10x$ is where we'll be making the cut. Mathematically, a "cut" is almost always shorthand for subtraction, so let's see what our operation (cutting $x$ off of $10x$ ) leaves us with:

$10x-x=76.\overline{6}-7.\overline{6}\\9x=69$

The operation was a success! We can now simply divide either side by 9 to find $x = 69/9$ , which, when reduced by dividing the numerator and denominator by 3, gives us $x=23/3$

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3 years ago

You build and sell toy cars for $36 each. So far, you have built 25 toy cars. How many more toy cars will you have to build and

vovikov84 [41]

You need to build 20 more toy cars

8 0

3 years ago

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What is the answer to this and how do I do this problem?

DaniilM [7]

Answer:

B) 25.1 units

Step-by-step explanation:

The perimeter is the sum of the lengths of the sides of the triangle. The length of the side BC that is vertical can be found by finding the difference of y-coordinates:

BC = 5 -(-2) = 7

The lengths of the other two sides can be found using the given distance formula. Fill in the coordinate values and do the arithmetic.

AB = √((4-(-4))^2 +(5-(-1))^2) = √(8^2 +6^2) = √(64+36)

AB = √100 = 10

__

AC = √((4-(-4))^2 +(-2-(-1))^2) = √(8^2 +(-1)^2) = √(64 +1)

AC = √65 ≈ 8.06

__

So, the perimeter is ...

P = AB +BC +AC

P = 10 + 7 + 8.06 = 25.06 ≈ 25.1 . . . . matches choice B

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3 years ago

What percentage of 95 is 19

Nutka1998 [239]

Answer:

2

Step-by-step explanation:

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3 years ago

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