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Ira Lisetskai [31]
3 years ago
14

Select all of the following that can be a counterexample for the statement below.

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
5 0

Answer:

-2, 3

Step-by-step explanation:

We are given the following inequality:

x + 2 > 7

Solving it, we have that its solution is:

x > 7 - 2

x > 5

So values of x of 5 and lower are counterexamples to this, which means that -2 and 3 are correct options to this question.

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A hamster runs at 17 centimeters per second in a wheel of radius 15 centimeters how fast will the wheel spin in revolutions per
dolphi86 [110]

Answer:

10.82 revolutions per mintue

Step-by-step explanation:

First we need the circumference of the cirkel. As you may know the formula for that is 2×pi×r, with r as the radius of the cirkel. So 2×pi×15=30pi centimeters or 94.24 centimeters. Now we will calculate the fraction of 17 centimeters on 94.24 centimeters. 17/94.24=0.18. That is how fast the wheel will spin. To get it in minutes we now do: 0.18×60=10.82 revolutions per minute.

4 0
3 years ago
Luis bought a pair of pants and a shirt He spent $15 on the pants. He bought five shirts that each cost d dollars less than the
Natali5045456 [20]
15=pants
d less than pants means
15-d

5 of them
5(15-d)=cost of shirts

so total cost=15+5(15-d)
3 0
3 years ago
Question is attached
Arlecino [84]

Answer:

Let v = ml of 100% vinegar

Then 150-v = ml of dressing

v  + .05(150-v) = .24(150)

v + 7.5 - .05v = 36

.95v = 28.5

v = 28.5/.95

v = 30 ml of vinegar

dressing = 150-30 = 120 ml

Step-by-step explanation:

7 0
3 years ago
Can anyone pls helppppp
dalvyx [7]
Hourly rate:
39(1.3r) = 541.80
(hours times hourly rate equals profit)

then solve
1.3r = 13.89
r = 10.69

the hourly rate is $10.69


to answer the bottom question, 390 + 117 = 507, but that’s not close to 541.80 so I have no idea what they’re asking there
4 0
3 years ago
The second step in solving problems using order of operations is solving the
inna [77]
PEMDAS.....parenthesis, exponents, multiplication/division, addition/subtraction

so step 2 is solving the exponents <==
6 0
3 years ago
Read 2 more answers
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