Mental division practice 57/3

(15POINTS PLUS 5 MORE AND BRAINLIEST)!

lyudmila [28]

Answer:

See the explanation below.

Step-by-step explanation:

Percentage of all the students landing point up $=\frac{45}{72}\times 100$

Percentage of student ten landing point up $=\frac{4}{72}\times 100$

Required Difference $=\left(\frac{45}{72}-\frac{4}{72}\right)\times 100$

$=56.94\%$

5 0

3 years ago

Given that a function, h, has a domain of -3 ≤ x ≤ 11 and a range of 1 ≤ h(x) ≤ 25 and that h(8) = 19 and h(-2) = 2, select the

laila [671]

Answer:

B

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Sarah enjoys cutting lawns and charges $20 for each small lawn and $30 for each large lawn. Sarah earned $140 for mowing 6 yards

saul85 [17]

x+y=6 and 20x+30y=140 can be used to determine the number of each type of lawn mowed by Sarah.

Step-by-step explanation:

Given,

Charges for cutting small lawns =$20

Charges for cutting large lawns = $30

Total yards mowed = 6

Total amount earned = $140

According to given statement;

x+y=6 Eqn 1

20x+30y=140 Eqn 2

x+y=6 and 20x+30y=140 can be used to determine the number of each type of lawn mowed by Sarah.

Keywords: linear equation, addition

Learn more about linear equations at:

#LearnwithBrainly

7 0

3 years ago

Determine if triangle ABC with coordinates A (0, 2), B (2, 5), and C (−1, 7) is an isosceles triangle. Use evidence to support y

kirill115 [55]

Answer:

The triangle ABC is an isosceles right triangle

Step-by-step explanation:

we have

The coordinates of triangle ABC are

A (0, 2), B (2, 5), and C (−1, 7)

we know that

An isosceles triangle has two equal sides and two equal internal angles

The formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find the distance AB

substitute in the formula

$d=\sqrt{(5-2)^{2}+(2-0)^{2}}$

$d=\sqrt{(3)^{2}+(2)^{2}}$

$dAB=\sqrt{13}\ units$

step 2

Find the distance BC

substitute in the formula

$d=\sqrt{(7-5)^{2}+(-1-2)^{2}}$

$d=\sqrt{(2)^{2}+(-3)^{2}}$

$dBC=\sqrt{13}\ units$

step 3

Find the distance AC

substitute in the formula

$d=\sqrt{(7-2)^{2}+(-1-0)^{2}}$

$d=\sqrt{(5)^{2}+(-1)^{2}}$

$dAC=\sqrt{26}\ units$

step 4

Compare the length sides

$dAB=\sqrt{13}\ units$

$dBC=\sqrt{13}\ units$

$dAC=\sqrt{26}\ units$

$dAB=dBC$

therefore

Is an isosceles triangle

Applying the Pythagoras Theorem

$(AC)^{2} =(AB)^{2}+(BC)^{2}$

substitute

$(\sqrt{26})^{2} =(\sqrt{13})^{2}+(\sqrt{13})^{2}$

$26=13+13$

$26=26$ -----> is true

therefore

Is an isosceles right triangle

8 0

3 years ago

Ken’s predicted temperature for April is 7ºC. His prediction for May is 2ºC higher than April. He used the number line to solve

Gekata [30.6K]

Answer:

He should have moved to the right.

Step-by-step explanation:

Ken moved 7 to the right which is correct because he needs to get 7º higher, but when he moved 2º to the left that would be a temperature decrease which is is incorrect.

7 0

3 years ago

Read 2 more answers