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ANTONII [103]
2 years ago
9

3 plus four times a number

Mathematics
2 answers:
Aliun [14]2 years ago
8 0

Answer:

Write it out as numbers 3+4(x)

Alchen [17]2 years ago
4 0
3+4*(x) this is the answer in numbers
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Point K on the number line shows Kelvin's score after the first round of a quiz: In round 2, he lost 9 points. Which expression
weqwewe [10]

Complete question :

Point K on the number line shows Kelvin's score after the first round of a quiz: A number line is shown from negative 10 to 0 to positive 10. There are increments of 1 on either side of the number line. The even numbers are labeled on either side of the number line. Point K is shown on 3. In round 2, he lost 9 points. Which expression shows how many total points he has at the end of round 2? 3 + (−6) = −9, because −9 is 6 units to the left of 3 3 + 6 = −9, because −9 is 6 units to the left of 3 3 + (−9) = −6, because −6 is 9 units to the left of 3 3 + 9 = −6, because −6 is 9 units to the left of 3

Answer: 3 + (−9) = −6, because −6 is 9 units to the left of 3

Step-by-step explanation:

Given the following :

Width of number line = - 10 to + 10

Point K on the number line = +3 ( kelvin's score after the first round of quiz).

If Kelvin losses 9 points in round 2  = - 9

Hence at the end of round 2, He'll have a total of :

Point at the end of round 1 + point lost in round 2

3 + (-9) = - 6

6 0
3 years ago
A stadium has 55,000 seats. Seats sell for ​$28 in Section​ A, ​$16 in Section​ B, and ​$12 in Section C. The number of seats in
salantis [7]
A=number of seats in section A
B=number of seats in section B
C=number of seats in section C

We can suggest this system of equations:

A+B+C=55,000
A=B+C                                      ⇒A-B-C=0
28A+16B+12C=1,158,000

We solve this system of equations by Gauss Method.

1             1              1               55,000
1            -1            -1                         0
28         16           12          1,158,000 


1             1              1               55,000
0            -2             -2             -55,000                                    (R₂-R₁)
0           12             16           382,000                                    (28R₁-R₂) 


1            1                1              55,000
0           -2              -2             -55,000
0            0                4               52,000                                     (6R₂+R₃)

Therefore:

4C=52,000
C=52,000/4
C=13,000


-2B-2(13,000)=-55,000
-2B-26,000=-55,000
-2B=-55,000+26,000
-2B=-29,000
B=-29,000 / -2
B=14,500.

A + 14,500+13,000=55,000
A+27,500=55,000
A=55,000-27,500
A=27,500.

Answer: there are 27,500 seats in section A, 14,500 seats in section B and 13,000 seats in section C.
3 0
3 years ago
Simplify 3x³(x+2)+2x(x²+3x)​
max2010maxim [7]

Answer:

{3x}^{4} +  {8x}^{3}   +  {6x}^{2}

Step-by-step explanation:

{3x}^{3} (x + 2) + 2x( {x}^{2}  + 3x)

{3x}^{4}  +  {6x}^{3}  +  {2x}^{3}  +  {6x}^{2}

{3x}^{4} +  {8x}^{3}   +  {6x}^{2}

<h3>Hope it is helpful...</h3>
8 0
3 years ago
Need to be done asap!!! I will give u brainliest if ur right
alisha [4.7K]
The answer is the first one, A
3 0
3 years ago
Kayla wants to build a fence in her backyard the length of her backyard is 30 feet and the width is 45 feet how many feet of fen
crimeas [40]

Answer:

150

Step-by-step explanation:

30 + 30 + 45 + 45 = 150

4 0
3 years ago
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