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ivolga24 [154]
3 years ago
7

Zoey needs at least $30 to buy a gift. She has $12. Which inequality could Zoey use to find out how much more money (m) she need

s?
A) 12 ≤ 30 + m
B) 12 ≥ 30 + m
C) 30 ≤ 12 + m
D) 30 ≥ 12 + m
Mathematics
1 answer:
melisa1 [442]3 years ago
4 0

Answer:

The answer is C

Step-by-step explanation:

She only could use 30 ≤ 12 + m to solve for how much more money she needs. m > 18

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Plz help!!!<br> Solve 6 (u - 4) - 8 = -6 (-4u + 6) -2u<br> Combine like-terms before solving
Elan Coil [88]
Combining like terms:
First do the first part which is 6(u-4)-8, you first distribute 6 to u and -4, 6u-24-8
-24-8=-32, 6u-32
Second part the same thing , distribute -6 to -4u and 6, (negative times a negative equals a positive) 24u-36-2u
24u-2u=22u

Solving:
6u-32=22u-36
Subtract 6u on both sides, -32=16u-36
Add 36 on both sides, 4=16u
Divide 16 on both sides
U=4/16 which is 0.25
8 0
3 years ago
A student working on a report about mathematicians decides to find the 98% confidence interval for the difference in mean age at
balandron [24]

Answer:

The entire population is measured in both cases, so the actual difference in means can be computed and a confidence interval should not be used.

Step-by-step explanation:

A student working on a report about mathematicians decides to find the 98% confidence interval for the difference in mean age at the time of math discovery for Greek mathematicians versus Egyptian mathematicians. The student finds the ages at the time of math discovery for members of both groups, which include all Greek and Egyptian mathematicians, and uses a calculator to determine the 98% confidence interval based on the t distribution, <u>the entire population is measured in both cases, so the actual difference in means can be computed and a confidence interval should not be used.</u> There is no as such explanation of this scenario, its just the answer mentioned above.

6 0
3 years ago
2x + y = 9<br> x = y - 3
lawyer [7]

Answer:

x=2 and y=5

Step-by-step explanation:

Steps:

I will solve your system by substitution.

x=y−3;2x+y=9

Step: Solve x = y − 3 for x:

Step: Substitute y − 3 for x in 2x + y = 9:

2x+y=9

2(y−3)+y=9

3y−6=9(Simplify both sides of the equation)

3y−6+6=9+6(Add 6 to both sides)

3y=15

3y/3=15/3  (Divide both sides by 3)

y=5

Step: Substitute 5 for y in x = y − 3 :

x=y−3

x=5−3

x=2(Simplify both sides of the equation)

Answer:

x=2 and y=5

3 0
3 years ago
Read 2 more answers
Which measurement best represents the height of a flag pole? (A)10 inches(B) 10 yards(C) 10 miles (D)
REY [17]

Answer:

10 Yards

Step-by-step explanation:

its so obvious my g

7 0
3 years ago
On her 21st birthday, Sydney deposited $400 in a new bank account that earns 3.7% interest compounded continuously. If there are
tankabanditka [31]

Answer:

$1,649.80

Step-by-step explanation:

7 0
3 years ago
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