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11111nata11111 [884]
3 years ago
8

9. On Johnny math test, he was asked to re-write the expression –3(x + 10) by using the distributive

Mathematics
1 answer:
kirill [66]3 years ago
5 0

Answer:

No, he is incorrect because he forgot to multiple the negative by the x, and only multiplied 3 by x instead of -3 by x.

Step-by-step explanation:

The correct re-write of this expression is:

-3x - 30

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a ceramic bowl weighs 340 grams when empty. it is then filled with sugar. one tablespoon of sugar weighs 12.5 grams. write an eq
wel

Answer:

Total Weight of Bowl W = 340 + (12.5\timesT) grams

Step-by-step explanation:

Given

Weight of Ceramic Bowl = 340 grams

1 table Spoon of Sugar Weighs = 12.5 grams

So T table Spoon of Sugar Weighs = 12.5\timesT

Total Weight of Bowl W = Weight of Ceramic Bowl + Weighs of T table Spoon of Sugar Weighs

Total Weight of Bowl W = 340+ (12.5\timesT)grams

4 0
3 years ago
Use slopes to determine if the lines y= -x/3- 9 and 6x – 2y = -5 are perpendicular.
WARRIOR [948]

Answer:

They are perpendicular.

Step-by-step explanation:

When we convert the equation 6x-2y=-5 into y=mx+b form, it changes into y=3x-5/2. Since we know that perpendicular slopes are opposite reciprocal, the opposite reciprocal of -x/3 is 3. So, we know that these 2 slopes are perpendicular.

8 0
3 years ago
Draw a figure strategy a snail is at t bottom of a 10 ft wall. Each day it climbs up 3 ft. Each night it slides down back 1 ft.
antiseptic1488 [7]
The snail will reach the top of the wall by day 5.

(3ft-1ft)x = 10ft
2x = 10
2x / 2 = 10/2
x = 5 days.

The snail will reach the top of the wall on the 5th day.

11=                                                 d5
10=                                                        d5
9=                                       d4
8=                                             d4  d5
7=                          d3
6=                                d3  d4
5=             d2
4=                  d2    d3
3=  d1
2=       d1  d2
1=
0=  d1




6 0
3 years ago
A 6% sales tax charged on a $43.50 Item. How much is paid for the item altogethe
Natasha2012 [34]

Answer: Simply multiply 43.50 x .06 you get 2.61 add them = $46.11

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Use the binomial theorem to expand the binomial (x + -2y)8.
m_a_m_a [10]

Answer:

256x8y8256+2x8y8+56x3y7+28x7y2+126x5y4+x8+1048x7y+1932x6y2+2240x5y3+2310x4y4+2296x3y5+1932x2y6+1048xy7+y8+8x6y+56xy3+28x2y+8xy

Step-by-step explanation:

3 0
3 years ago
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