MATHEMATICS MIDDLE SCHOOL

Please help, I'm so confused

Answers

Answer 1

Answer:

Answer:

675

Step-by-step explanation:

you take 4.5 and divide it by .5

you should get 9 as your answer.

then you take 9 and multiply it by 75

you should end up with 675

Answer 2

Answer:

Answer:

675

Step-by-step explanation:

use the legend under the map

They spent $4 per hour hiked.

Step-by-step explanation:

They spent

$9.00 in water.
$5.00 in protein bars.
$3.00 in peanuts.

Total cost $17.

Now, if the hiked from 11.30 AM to 3.45 PM, then they hike for 4 hours and 15 minutes. However, we need to transform those minutes into hours before we find the rate

$15min(1hr)/(60min)=(1)/(4)hr=0.25hr$

So, they hiked for 4.25 hours.

Then, to find the unit rate of money spent per hour hiked, we just need to divide $17 by 4.25 hr.

$(\$17)/(4.25hr)=4(\$)/(hr)$

Therefore, they spent $4 per hour hiked.

Evaluate each expression (25^-3/2)^1/3

Answers

Following are the calculation to the given expression:

Given:

$\to (25^{-(3)/(2))^{(1)/(3)}$

To find:

evaluate expression=?

Solution:

$\to (25^{-(3)/(2))^{(1)/(3)}= ((5^2)^{-(3)/(2))^{(1)/(3)}\n$

$= (5^{2 * -(3)/(2)})^{(1)/(3)}\n\n= (5^(-3))^{(1)/(3)}\n \n= 5^{{-3}* (1)/(3)}\n \n= 5^(-1)\n\n=(1)/(5)$

The final answer is " ${(1)/(5)}$ ".

Learn more:

brainly.com/question/8061466

Answer:

$\large\boxed{\left(25^{-(3)/(2)}\right)^(1)/(3)=(1)/(5)}$

Step-by-step explanation:

$\text{Use}\ (a^n)^m=a^(nm)\n\n\left(25^{-(3)/(2)}\right)^(1)/(3)=25^{-(3)/(2)\cdot(1)/(3)}=25^{-(1)/(2)}\n\n\text{Use}\ a^(-n)=(1)/(a^n)\n\n=(1)/(25^(1)/(2))\n\n\text{Use}\ a^(1)/(n)=\sqrt[n]{a}\to a^(1)/(2)=\sqrt[2]{a}=√(a)\n\n=(1)/(√(25))=(1)/(5)$

3/10 in.=7/8 mi. (i am doing rates and ratios)

Answers

3/10 in
1 in =(1/12)ft
1 ft =(1/5280) mi

3/10 in=3/10*(1/12)*(1/5280) mi

PLEASE HELP!! WILL MARK BRAINLIEST AND THANK YOU!!!Determine whether the figure has line, point, and/or rotational symmetry.

(you can choose multiple)

line

point

rotational

none

Answers

The figure has the following symmetry:

A. line

B. point.

What is the order of rotational symmetry?

In Mathematics and Geometry, the order of rotational symmetry of any geometrical figure can be defined as the number of times in which the geometrical figure can be rotated around a full (complete) circle and still look the same.

As a general rule in geometry, a geometrical figure with number of sides (n) has "n" lines of symmetry and its order of rotational symmetry is equal to "n."

Based on the above rule, we can reasonably infer and logically deduce that the figure has both line symmetry and point symmetry.

Read more on order of rotational symmetry here: brainly.com/question/24279623

#SPJ3

Answer:

line and point

Step-by-step explanation:

there are 3 points and 5 lines

Three more than four times a number is 15

Answers

You can model this with the equation 4x+3=15 since it is a number (x) times 4 with 3 added and equals 15.
Subtract 3 from both sides
4x=12
Divide both sides by 4
x=3

4x +3=15 is the equation ..... You do not have to solve it

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