MATHEMATICS
MIDDLE SCHOOL

Answer:

Answer:

midpoint of AB: (- 0.5 , - 2.5)

Step-by-step explanation:

(2,4) (-3,-9)

distance of x to x' = 2 - (-3) = 5

mid point from -3 : x coordinate -3 + 5/2 = - 0.5

distance of y to y' = 4 - (-9) = 13

mid point from -9 : y coordinate -9 + 13/2 = - 2.5

midpoint of AB: (- 0.5 , - 2.5)

MIDDLE SCHOOL

Which of the following us the solution to 6 | x-9 | > 12?

Answer:

x∈ (11, +∞)

x∈ (-∞, 7)

Step-by-step explanation:

6|x-9|>12 :Split into possible cases

6(x-9)>12, x-9≥0 : solve the inequalities

x>11, x≥9

x

MIDDLE SCHOOL

46cm = how many millimetres

Solution

One centimeter is equal to 10 millimeters. To find how much millimeters are in 46 centimeters you have to multiply by 10 since there are 10 millimeters in 1 centimeter .

1 cm = 10 mm

Calculations

46 x 10 = 460

There are 460 millimeters

46 cm = 460 mm

One centimeter is equal to 10 millimeters. To find how much millimeters are in 46 centimeters you have to multiply by 10 since there are 10 millimeters in 1 centimeter .

1 cm = 10 mm

Calculations

46 x 10 = 460

There are 460 millimeters

46 cm = 460 mm

MIDDLE SCHOOL

Which variable is most important to the following problem? At 10:00 a.m, a patient's temperature was 101.5 degrees. At 1:00 p.m, the the highest ever recorded. How long did it take for the patient's temperature t's temperature again and found it was 105.8 degrees, to reach a record high?

the answer is A. because it takes time for the temp to rise. In this case it took 3 hours for it to rise 4.3 degrees

MIDDLE SCHOOL

Help me solve those show work 3(2a-5)=12-7a, 27=3c-3(6-2c)and 6c-8-2c=-16

3(2a-5) = 12-7a

6a-15=12-7a

6a+7a=12+15

13a= 27

27=3c-3(6-2c)

27=3c-18+6c

27+18=3c+6c

45=9c

C=45/9

C=5

6c-8-2c=-16

6c-2c=-16+8

4c=-8

C=-8/4

C=-2

6a-15=12-7a

6a+7a=12+15

13a= 27

27=3c-3(6-2c)

27=3c-18+6c

27+18=3c+6c

45=9c

C=45/9

C=5

6c-8-2c=-16

6c-2c=-16+8

4c=-8

C=-8/4

C=-2

COLLEGE

a test is worth 100 points and contains 38 problems. multiple-choice questions are worth 2 points each and word problems are worth 5 points. How many of each type of question are there?

30×(2)+8×(5)

= 100

this took a long time but I learned this today so it's the only reason I remember (:

= 100

this took a long time but I learned this today so it's the only reason I remember (:

The answer is 100

in the simple way

HIGH SCHOOL

What value of b will cause the system to have an infinite number of solutions? A system of equations. y equals 6 x plus b. negative 3 x plus StartFraction one-half EndFraction y equals negative 3.

Answer:

Step-by-step explanation:

we have

----> equation A

-----> equation B

we know that

If equation A is the same of equation B, then the system of equations will have infinite solutions

Convert equation B in slope intercept form

Isolate the variable y

Multiply by 2 both sides to remove the fractions

Adds 6x both sides

-----> equation C (slope intercept form)

Equate equation A and equation C and solve for b

Answer:

The answer to this question is -6.

Hope this helps!!! :)

MIDDLE SCHOOL

CORRECT ANSWER WILL GET BRAINLIEST 3. The length of a rectangle is 7 mm longer than its width. Its perimeter is more than 62 mm. Let w equal the width of the rectangle.

(a) Write an expression for the length in terms of the width.

(b) Use these expressions to write an inequality based on the given information.

(c) Solve the inequality, clearly indicating the width of the rectangle.

So,Let l represent the length of the rectangle.The first statement translates to:l = 7 + wThe second statement translates to:2l + 2w > 62a. The first statement is the answer to this question: l = 7 + wb. Since the question asks us to write AN inequality, we will "combine" the two equations by substitution.2(7 + w) + 2w > 6214 + 2w + 2w > 6214 + 4w > 62c. Now, all we have to do is solve the inequality.Subtract 14 from both sides.4w > 48Divide both sides by 4.w > 12

The width of the rectangle must be strictly greater than 12 mm.

HIGH SCHOOL

Jennifer has a string attached to the end of a buoy with extra string coiled on the bottom of the tank. She measures the length of the string from where it is attached to the buoy to the bottom of the tank as he adds more water to the tank. The length changes linearly as water is added. The table shows the collected data. What is the slope of the line that models the data?

The slope is the ratio of fall to run. Then the slope of the line is 1.5, then the correct option is A.

What is the slope?The slope is the ratio of rising or falling and running. The difference between the ordinate is called rise or fall and the difference between the abscissa is called run.

Jennifer has a string attached to the end of a buoy with extra string coiled on the bottom of the tank.

She measures the length of the string from where it is attached to the buoy to the bottom of the tank as he adds more water to the tank.

The length changes linearly as water is added.

Then the slope of the line will be

More about the slope link is given below.

brainly.com/question/3605446

Its A,,,,,,,,,,,,,,,,,,,,,,, Jennifer has a string attached to the end of a buoy with extra string coiled on the bottom of the tank. She measures the length of the string from where it is attached to the buoy to the bottom of the tank as he adds more water to the tank. The length changes linearly as water is added. The table shows the collected data. What is the slope of the line that models the data?

MIDDLE SCHOOL

One vegetable warehouse had 210 tons of potatoes, another one had 180 tons. 90 tons of potatoes were delivered to the first and 120 tons to the second warehouse every day. In how many days will the first warehouse have 1.2 times less potatoes than the second warehouse?

Answer:

6 days

Step-by-step explanation:

The equation for first warehouse would be:

210 + 90x

The equation for 2nd warehouse would be:

180 + 120x

Where x is he number of days.

In how many days will the first warehouse have 1.2 times less potatoes than the second warehouse?

This means the first warehouse expression TIMES 1.2 would give us 2nd warehouse expression. Equating and solve:

So it would require 6 days