Ask question

Ask question

All categories

3 years ago

13

ada writes 10 + 8 = 18 on the board . to use the commutative property of addition to rewrite ada's addition sentence. what numbe

r sentence should maria write ?

1 answer:

Mashcka [7]3 years ago

6 0

8+10 = 18 is what it is I'm pretty sure

You might be interested in

Help me I will give extra points

dlinn [17]

Answer: g(x) = -4x + 5

Please mark me brainliest instead of points

3 0

3 years ago

Evaluate 3x2 - 4 when χ= 2.<br> Α. 2<br> Ο Ο Ο<br> Ο Β. 8<br> C. 12<br> Ο D. 32

solniwko [45]

Answer:

D. 32.

Step-by-step explanation:

$3x^2 - 4\\= 3^2 * 2\\= 6^2 - 4\\= 36 - 4\\= 32.$

hope this helps.

3 0

2 years ago

Find the length and width of a rectangle whose perimeter is 20 feet and whose area is 21 square feet

ipn [44]

Answer:

Length = 3

Width = 7

Step-by-step explanation:

The perimeter is 20 feet

The area is 21 feet

Let x represent the length

Let y represent the width

20 = 2(x+y)

x+y= 20/2

x+y = 10.........equation 1

x × y= 21......equation 2

From equation 1

x= 10-y

Substitute 10-y for x in equation 2

(10-y)y= 21

10y - y^2 = 21

y^2 -10y + 21= 0

After factorization the result will be

(x-3)(y-7)

x-3= 0

x= 0+3

x= 3

y-7= 0

y= 0+7

y= 7

Hence the length is 3 and the width is 7

6 0

3 years ago

mrs.eddington is buying a new big screen television. She made an initial payment of $50 and paid a total of $890 over 12 months.

Gnom [1K]

890-50=840 840/12= 70 monthly

3 0

3 years ago

When 31 times a number is increased by 40 the answer is the same as two 200 is decreased by the number

storchak [24]

$x-\ number\\\\
31x+40=200-x\ \ \ | add\ x\\\\
32x+40=200\ \ \ | subtract\ 40\\\\
32x=160\ \ \ \ | divide\ by\ 32\\\\x=5\\\\Number\ is\ 5.$

4 0

3 years ago