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uysha [10]
3 years ago
15

A number added to one third of itself equals 12 . what is the number​

Mathematics
2 answers:
Drupady [299]3 years ago
8 0

Answer:

9

Step-by-step explanation:

x+1/3x=12

(3x+1x)/3=12

4x/3=12

4x=12×3

4x=36

x=36/4

x=9

ValentinkaMS [17]3 years ago
6 0

Answer:

1/3+x=12(cross multiply)

x+1=12*3

x+1=36(collect like terms)

x=36-1

x=35

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CAN ANYOKE PLEASE HELP ME OUT! <br> Simplify
ddd [48]

Answer:

24x^1^3

Step-by-step explanation:

(2x^3)^3 *3x^4\\2^3x^3^*^3*3x^4\\8x^9*3x^4\\(8*3)x^9^+^4\\24x^1^3

4 0
3 years ago
Cecily's teacher held a raffle. To win the raffle, a student has to pick a paper scroll with an integer written on it. The chart
AfilCa [17]

Complete question :

Cecily’s teacher held a raffle. To win the raffle, a student has to pick a paper scroll with an integer written on it. The chart shows the scrolls picked by Cecily and her friends.

Name

Paper Scroll

Cecily

A scroll labeled 6.7.

Marty

A scroll labeled negative 37.

Jon

A scroll labeled StartFraction 7 Over 9 EndFraction

Fiona

A scroll labeled 3 and one-third.

Who picked the winning scroll?

Cecily picked the winning scroll.

Marty picked the winning scroll.

Jon picked the winning scroll.

Fiona picked the winning scroll.

Answer:

Marty picked the winning scroll.

Step-by-step explanation:

Based on the rule given in other to win, the winning scroll is that which has integer value written on it.

An integer simply means a number devoid of fraction. Hence, it could be a positive or negative while number.

Given that the students pick below :

Cecily = 6.7 (not an integer)

Marty = - 37 (integer)

Jon = 7/9 (not an integer)

The only scroll which meets the condition of being an integer is Marty's scroll ; Hence, she picked the winning scroll.

7 0
3 years ago
What is 4 times as much as 20.075? show work
choli [55]

Answer:

80.3

Step-by-step explanation:

20.075 x 4 = 80.3

Hope that helps!

5 0
3 years ago
Identify a value k that makes (x+5) a factor of x^3+kx^2-x+45<br><br> will mark brainliest
coldgirl [10]

Answer:

We should attempt synthetic division to find when

x

3

−

k

x

2

+

2

k

x

−

15

x

−

3

has a remainder of

0

, which would signify that it is a factor of the polynomial.

The synthetic substitution would be set up as:

3

−

∣

∣

∣

1

−

k

2

k

−

15

−−−

−−−

−−−

−−−

−−−

|

0

Treating the synthetic division like any other synthetic division problem, we see that

3

−

∣

∣

∣

1

−

k

2

k

−

15

−−−

−−−

3

−−−−−−−−

−

3

k

+

9

−−−−−−−−

−

3

k

+

27

−−−−−−−−−

1

−

k

+

3

−

k

+

9

|

0

If the remainder equals

0

, then we know that

−

3

k

+

27

+

(

−

15

)

=

0

Solve this to see that

k

=

4

.

Thus,

(

x

−

3

)

is a factor of

x

3

−

4

x

2

+

8

x

−

15

.

4 0
3 years ago
Convert to a percent.<br> 4.6
Mama L [17]

Answer: 460%

Step-by-step explanation: The decimal 4.6 equals 460%

To convert from decimal to percent, just multiply the decimal value by 100. In this example we have: 4.6 × 100 = 460% (answer).

➥ The ease way:

1) Move the decimal point two places to the right: 4.6 → 46 → 460.

2) Add a % sign: 460%

Answer: 460%

6 0
3 years ago
Read 2 more answers
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