Mathematics High School

the weight of 65 books is 13 kg what is the weight of 80 Such books​

Answers

Answer 1
Divide 13 by 65 to get the mass of one book and then multiply that by 80

Related Questions

Find the slope using points ( 7,-3) and (11,-4)

Answers

Answer:

1/4

Step-by-step explanation:

Answer:

m = [tex]-\frac{1}{4}[/tex]

Step-by-step explanation:

Use the following equation:

slope (m) = [tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]

Let:

[tex](x_1 , y_1) = (11 , -4)\\(x_2 , y_2) = (7 , -3)\\[/tex]

Plug in the corresponding numbers into the corresponding variables:

slope (m) = [tex]\frac{-3 - (-4)}{7 - 11} = \frac{-3 + 4}{7 - 11} = \frac{1}{-4} = -\frac{1}{4}[/tex]

[tex]-\frac{1}{4}[/tex] is your answer.

~

Find the value of x.

Answers

Answer:

x = 13

Step-by-step explanation:

3x + 5 = 44

3x = 39

x = 13

Mr.Williams bought 30 muffins and pies. Each muffin cost 2.50 dollars and each pie cost 4.50$. The pies cost 9$ more than the muffins. How many of each item did he buy?

Please find the answer

Answers

He bought 18 muffins and 12 pies.

Which words correctly complete the statement below?
APOR is dilated with the center of dilation at the origin and a scale factor of 0.5 to
obtain AP'O'R' The triangles' corresponding angles are
and their
corresponding sides are
therefore, the triangles are
congruent; proportional; similar
congruent; congruent; congruent
proportional; proportional; similar
proportional; congruent; congruent

Answers

Answer:

congruent; proportional; similar

Step-by-step explanation:

Welp, the last one before the test

Answers

Answer:

y=2x-3

Step-by-step explanation:

y=mx+c

m=gradient=

5-(-5)/4-(-1)

=10/5

=2

c=y intercept=-3

y=2x-3

Answer:

y = 2x - 3

Step-by-step explanation:

(4, 5) and (0, -3)

m=(y2-y1)/(x2-x1)

m=(-3-5)/(0-4)

m=(-8)/(-4)

m=2

y - y1 = m(x - x1)

y - 5 = 2(x - 4)

y - 5 = 2x - 8

y = 2x - 3

Graph the equation y = 4x − 5 using slope and y−intercept.


on a graph

Answers

ANSWER:
The picture below is an image of what the graph should look like. Hope this helps!

Subtract.
(2/9v)-(-1/3v+5/9)

Answers

Answer:

Use Desmos the calculator

Step-by-step explanation:

Answer: 5 ( x - 1) / 9

Lana has completed 65% of her math homework. Which fraction is equivalent to 65%?
A. 13/20
B. 65/1
C. 7/20
D. 13/2,000

Answers

Answer:

A) [tex]\frac{13}{20}[/tex]

Step-by-step explanation:

[tex]\frac{13}{20} = 065 = 65%[/tex]%

[tex]\frac{65}{1} = 65 = 100%[/tex]%

[tex]\frac{7}{20} = 035 = 35[/tex]%

[tex]\frac{13}{2,000} = 0.0065 = 0.0065[/tex]%

SOMEONE HELP!!!!!!!!!!!!!!!

Answers

Answer:

Q= 5c

Step-by-step explanation:

Q=5c ........................

2/3 divided by 3/6 is : help asap​

Answers

the answer is 4/3 OR 1 1/3 :)

2/3 / 3/6= 1 1/3
Let me know if you need me to show how to solve it

find lcm of 7 by 24 and 17 by 36​

Answers

Step-by-step explanation:

LCM for 7 by 24=168

LCM for 17 by 36=612

Which equation has no solution?

13y+2-2y=10y+3-7
9(3y+7)-2=3(-9y+9)
32.1y+3.1+2.4y-8.2=34.5y-5.1
5(2.2y+3.4)=5(y-2)+6y

Answers

Answer:

D has no solution

I hope this helps a little bit.

the roof of the clock tower is a square pyramid each side of the base is 16 ft the slant height is 22 ft what is lateral area of the roof​

Answers

Answer:

Need more points lang sorry

Josie watches a play at the theatre.
The play ends at 9:55 pm.
It takes Josie 15 minutes to get from her seat in the theatre to the bus stop.
Buses to Josie's home leave the bus top at the following times
18:25
19:25
20:25
21:05
21:25
22:05
22:25
a)
Write down the time of the earliest bus that Josie can catch.
b) How long will Josie have to wait at the bus stop for, if she catches the
earliest possible bus?

Answers

Answer:

22:25

She will wait for 15 min

Step-by-step explanation:

9:55 is 21:55 in 24h time

after 15 min it will be 22:10

the closest time will be 22:25

25-10 is 15

15 min waiting

Alex and Bill share a 24-ounce box of cereal. By the end of the week, Alex has eaten 3 8 of the box, and Bill has eaten 1 4 of the box of cereal. How many ounces are left in the box?

Answers

Answer:

9 ounces.

Step-by-step explanation:

Answer:

12 ounces on the box

Step-by-step explanation:

l have tried

please help!!! will mark brainliest

Answers

the second choice...... Let me know if it’s right

Answer:

2nd one I believe

Step-by-step explanation:

50 points! Given the vertices A(-4,6), B(6,6), C(6,2),find the circumcenter. I will mark brainliest. Random answers will be reported

Answers

Answer:

(1, 4)

Step-by-step explanation:

The circumcenter is the intersection of the perpendicular bisectors.

Find the two equations for the perpendicular bisectors and solve the system for intersection point.

Given the vertices A(-4,6), B(6,6), C(6,2)

Find the slope and midpoint of AB and BC

m(AB) = (6 - 6)/(6 - (-4)) = 0, this is a horizontal segment

M(AB) is

x = (-4 + 6)/2 = 1, y = (6 + 6)/2 = 6

Perpendicular bisector is a vertical line that passes through (1, 6) so its equation is:

x = 1

m(BC) is undefined as x-coordinates are same, so the segment is vertical

M(BC) is

x = (6 + 6)/2 = 6, y = (6 + 2)/2 = 4

Perpendicular bisector is a horizontal line that passes through (6, 4) so it is:

y = 4

The intersection of the lines x = 1 and y = 4 is the point (1, 4)

The circumcenter is point (1, 4)

The graph shows a line and two similar triangles.

What is the equation of the line?

A. Y=3/2x
B. Y=2/3x
C. Y=3x
D. Y=2x​

Answers

Answer:

a y=3/2× Pls help me do me one

a

What is arc BDE?
Links=reported
Plz helppp!!

Answers

Answer:

around 228 degrees

Step-by-step explanation:

Answer: 143

Step-by-step explanation:

does anyone know this one

Answers

Answer:

x + 3y = 14

-4 + 3y = 14

+4 +4

3y = 18

y = 6


1. At best buy they have a 50" TV that sells for $1450 and is on sale for 20% and sales tax is
7.5%. What is the final cost?

Answers

i think it’s 1,247. explanation: take 20% of 1450 and subtract it since it’s on sale, giving you 1160 after subtracting 290. then, take 7.5% of 1160 and add it. 7.5% of 1160 is 87, so if you add 87 to 1160, you get $1,247. hope this helped!
$1225 that’s the answer i got it right on the plato

What is the measure of angle RTV?

Answers

Answer:

25 degrees

Step-by-step explanation:

70 degrees times 2 to get 140 for the outside arc on the left, then add 140 plus 90 plus 80 to get 310, then do 360-310 to get 50, then divide that by 2 to get angle RTV which is 25 degrees.

help me please with these three problems

Answers

0, 1 and 1/2 if the question is what the fractions are closer to

John buys a bag containing 3 pounds of flour. He uses 12 ounces of the flour for a craft project. How much flour is left in the bag?

PLEASE ASAP

Answers

Answer:

36 ounces

Step-by-step explanation:

3 pounds is 48 ounces - 12 pounds used gives you 36 ounces which is 2 pounds and a quarter ( 2 1/4)

help with this question please

Answers

C because -7 is the biggest and x is smaller
The answer is C............

Joy and Joey share a 18-ounce bucket of clay. By the end of the week, Joy has used
1
6
of the bucket, and Joey has used
2
3
of the bucket of clay. How many ounces are left in the bucket?

Answers

3 ounces
explanation: 1/6 of 18 is 3 so 18-3= 15 and 2/3 of 18 is 12 so 15-12=3 ounces

Evaluate the following expression when x = 3 and y = 4:
2x + y2 - 1

Answers

Answer:

21

Step-by-step explanation:

x = 3

y = 4

2x + y² - 1

2(3) + 4² - 1

2(3) + 16 - 1

6 + 16 - 1

22 - 1

21

Martina runs 8 miles in 72 minutes.
How many minutes does she take per mile?

Answers

Answer:

9 minutes per mile

Step-by-step explanation:

72/8 = 9 min/mile

A small painting has an area of 400 cm2. The length is 4 more than 2 times the width. Find the dimensions of the painting. Solve by completing the square. Round answers to the nearest tenth of a centimeter.
PLEASE HELP! I WILL MARK AS BRAINLIEST!

Answers

400 = 8x * x

400 = 8x^2

400 / 8 = x^2

root/50 = x

7.1cm = x

A right square prism has a volume of 220 cubic meters. The prism is enlarged so its height is increased by a factor of 10, but the other dimensions do not change. What is the new volume?
A. 2200m³
B. 1450m³
C. 1200m³
D. 1580m³

Answers

B. Is the correct answer

Answer:

B.

Step-by-step explanation:

your welcome

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