All categories

2 years ago

1. Addition:

Mathematics

1 answer:

Stolb23 [73]2 years ago

3 0

Answer:

<h2><em>See explanation.</em></h2>

Step-by-step explanation:

<h2>1. Subtraction</h2>

a. x - 2 = 10

x = 12

12 - 2 = 10.

b. s - 4 = 6

s = 10

10 - 4 = 6

c. y - 10 = 24

y = 34

34 - 10 = 24

d. t - 3 = 9.

t = 12

12 - 3 = 9

<h2>2. Addition</h2>

a. x + 2 = 10

x = 8

8 + 2 = 10

b. s + 4 = 6

s = 2

2 + 4 = 6

c. y + 10 = 24

y = 14

14 + 10 = 24

d. t + 3 = 9

t = 6

6 + 3 = 9

<h2>3. Multiplying Fractions</h2>

a. 1/2x = 10

x = 20

1/2(20) = 10

b. 1/4s = 8

s = 32

1/4(32) = 8

c. 1/3t = 6

t = 18

1/3(18) = 6

d. 1/5y = 20

y = 100

1/5(100) = 20

<h2>4. Multiplying Whole Numbers</h2>

a. 4x = 32

x = 8

4 * 8 = 32

b. 13x = 39

x = 3

13 * 3 = 39

c. 5x = 25

x = 5

$\sqrt{25}$ = 5

5 * 5 = 25

d. 10x = 100

x = 10

$10\sqrt{100}$ = 10

10 * 10 = 100.

<h2><u><em>Hope this helps.</em></u></h2>

You might be interested in

A projectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t^2 640t.

Nataly_w [17]

- <span>A </span>projectile<span> is </span>thrown upward so<span> that </span>its distance above<span> the </span>ground after t seconds<span> is </span>given<span> by the </span>function h(t<span>) = - 16t² + </span>640t<span>. </span>After<span> how </span>many seconds<span> does the </span>projectile<span>take</span><span> to reach </span>its<span> maximum height? I made the </span>function<span> .</span>

4 0

3 years ago

What is this answer Y= 3x - 4

zubka84 [21]

Which question exactly?

6 0

3 years ago

FIFTY POINTS - It took 4 hours for a biker to travel from one city to another going at a certain speed. On the return trip, the

Crazy boy [7]

Answer:

Either 200 km or 160 km.

Step-by-step explanation:

Distance = speed × time

Let x = the biker's normal speed

Then

(1) d = 4x

For the return trip,

Time = distance/speed

(2) 4.5 = 100/x + (d -100)/(x - 10)

4.5x = 100/x + (4x -100)/(x - 10) Substituted (1) into (2)

4.5x = 100 + x(4x -100)/(x - 10) Multiplied each side by x

4.5x(x - 10) = 100(x - 10) + x(4x -100) Multiplied each side by (x - 10)

4.5x² - 45x = 100x - 1000 + 4x² -100x Removed parentheses

4.5x² - 45x = -1000 + 4x² Cancelled terms

0.5x² - 45x = -1000 Subtracted 4x² from each side

0.5x² - 45x +1000 = 0 Added 1000 to each side

x² - 90x +2000 = 0 Multiplied each side by 2

(x - 50)(x - 40) = 0 Factored the quadratic

x - 50 = 0 x - 40 = 0 Applied zero product theorem

x = 50 x = 40

Substitute in (1)

d = 4 × 50 = 200 km; d = 4 × 40 = 160 km

The distance between the two cities is either 200 km or 160 km.

Check:

x = 50 x = 40

4.5 = 100/50 + (200 - 100)/(50 - 10) 4.5 = 100/40 + (160 - 100)/(40 - 10)

4.5 = 2 + 100/40 4.5 = 2.5 + 60 /30

4.5 = 2 + 2.5 4.5 = 2.5 + 2

4.5 = 4.5 4.5 = 4.5

8 0

3 years ago

PLEASE HELP ASAP LOTS OF POINTS AND BRAINIEST!

Nataly [62]

I think she means that Q.1 is 8 and that

6 0

4 years ago

Now measure the lengths of the sides of polygon ABCD and tbe lengths of the sides of the translated images. Record the measureme

Travka [436]

Answer:

3.16, 3.16, 3.16

1.41, 1.41, 1.41

3.16, 3.16, 3.16

Step-by-step explanation:

5 0

3 years ago