MATHEMATICS MIDDLE SCHOOL

7. Two fields at a state park arfields are 8 centimeters ap
ta state park are 1,000 meters from each other. On a map, the two
re o centimeters apart. What scale is the map using?

Answers

Answer 1
Answer:

Answer:

The  map  is  using  a  1cm:125 m  scale

Step-by-step explanation:

To figure this out, we must use the scale of the map as a unit.

So we first figure out how many meters are for each centimeter on the map.

" Two fields at a state park are fields are 8 centimeters ap(?)ta state park are 1,000 meters from each other."

Set up the ratio:

(1000)/(8)  = (x)/(1)

Cross multiply:

8x  =  1000

Meaning:

x = (1000)/(8)

1000/8

==> 125

x = 125

Meaning that for every centimeter there is 125 meters

1cm = 125m

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Which numbers are solutions to the inequality x < −7, using the replacement set {−15, −10.5, −7.2, −7, 0}?Choose all answers that are correct.

A.
–7

B.
−7.2

C.
−10.5

D.
−15

Answers

The correct answers are B, -7.2, C, -10.5, and D, -15. The inequality x < -7 means that x is less than -7. Keep in mind that the larger a negative number appears to be, the smaller a number it actually is. For example, if you were 1 dollar in debt, then you would have more money than if you were 100 dollars in debt.

x < -7   Given
-7 < -7   Substitute for answer choice A
This inequality is untrue, because -7 is equal to -7.

-7.2 < -7   Substitute for answer choice B
This inequality is true, because -7.2 is less than -7.

-10.5 < -7   Substitute for answer choice C
This inequality is true, because -10.5 is less than -7.

-15 < -7   Substitute for answer choice D
This inequality is true, because -15 is less than -7.

Hope this helps!

A 100-pound person on Earth would weigh about 4 x 4 x 4 x 4 pounds on Jupiter. Evaluate the expression to determine how much a 100-pound person would weigh on Jupiter.

Answers

Answer:

\text{Weight on Jupiter} = (25)/(64)* (\text{Weight on earth})

Step-by-step explanation:

A 100 pound person on earth weigh 4×4×4×4 pounds on Jupiter.

4×4×4×4 pounds weight = 256 pounds

Therefore ratio of the weights on earth and Jupiter = 100 : 256

= 25 : 64

Let a person weigh x pounds on Earth therefore the expression which represents the weight of the person on Jupiter will be

\frac{\text{Weight on Jupiter}}{\text{Weight on Earth}}=(25)/(64)

\text{Weight on Jupiter} = (25)/(64)* (\text{Weight on earth})
he would weigh 25,600 pounds on Jupiter
100 * 4*4*4*4 gives you 25,60p

Plz help #s 13....14....15.....16....17......18

Answers

#14 is B, #16 is A, #17 is B #18 is C. I can't read #15 or #13. If you need to show work i will say in a differ comment.

Help with some questions please Brainilest answer !/

Answers

ok , lots of questions=lower standard of explanation
just answers


5. 8.5 times 10^12
6. 0.001260-7,003,000
7.3.843 times 10^4
9. x=1
10. 7^(x+5)=49^(x+3)
11. 1.03
12. 25,700(0.85)^x
13. 10a√a
14. 2 x^(2) y^(4) \sqrt[3]{5x^(2)}
15.6√3
16. (2 √(3x) )/(3x)
17. 4 \sqrt[3]{x^(2)}
18.64 x^{ (10)/(3) } y^{ (5)/(2) }
19.√109
20. (8,(3/2))
21. 5 units
8.5 × 10^126.) .001260 - 70030007.) 3.843 × 10^59.) X=110.) 7 ^x + 5 = 49 ^ x + 311.) 312.) A (or the first one)13.) The third one14.) I would guess the third one15.) The first one16.) The last one17.) The second one18.) The third one19.) The last one20.) The last one21.) The last one

Tina pet sits to earn extra money. She charges a flat service fee of $20, plus $20 per day. If one of her customers spent less than $80, which of the following inequalities could be used to solve for x, the number of days the customer paid for pet sitting?$20x + $20 < $80
$20x < $80
$20x - $20 < $80
$20x < $100

Answers

The formula for the total amount costumers pay is 20x+20 because 20* the number of days is 20x and then you have to add the 20 dollars for the service fee. The costumer paid less than 80 dollars so 20x+20, which is what the costumer paid, is less than 80. The answer is $20x+$20<$80.

What is 428.6401 rounded to the nearest whole number ?

Answers

it would be 429 because 5 or more go next door for or less home is best. and 8 is greater then 5
Since you're rounding to the nearest whole number, you use the tenths place to determine how to round it. 6 ≥ 5 so the ones place is rounded up, making 429 your answer.
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