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Ne4ueva [31]
3 years ago
6

What is true about the equation t=c+40

Mathematics
1 answer:
user100 [1]3 years ago
6 0
C=t-40 T-c=40 C-t=-40
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What are the factors of the trinomial x^2+6x-7
zysi [14]
X^2 + 6x - 7 =
(x + 7)(x - 1)
4 0
3 years ago
The following dot plot represents student scores on the Unit 1 math test. Scores are in whole number increments.
ratelena [41]

Answer:

38.3 (idk if it can be a decimal)

i think its 15. dont come at me

18 i think

~s9154499~

~Mia for short~

5 0
3 years ago
A ratio can be simplified.
Yuri [45]

Answer:

Yes, a ratio can be simplified.

Step-by-step explanation:

An example of this is 5:10, where it can be simplified down to 1:2.

8 0
3 years ago
1-i need to mix 25% mineral spirits to the varnish i am using what ratio of spirit to varnish am i using? 2-if i use 240 ml of v
Ad libitum [116K]

Answer: (a) The ratio of spirit to varnish is 1 : 3

(b) You will need 80 ml of mineral spirits

(c) Ratio = 3 : 2

Step-by-step explanation: (a) If you have to mix 25% mineral spirit to the varnish as required in the question, then the whole solution would effectively contain 25 percent spirit and 75 percent varnish, giving you a hundred percent solution. To express both quantities in ratio can be done as follows;

Ratio = Spirit : Varnish

Ratio = 25 : 75

Ratio = 1 : 3

(b) Next, if you use 240 ml of varnish, this quantity would constitute 75 percent or ratio 3 out of 4 of your total solution. Therefore 240 ml of varnish can be expressed as follows;

240 : x = 3 : 4

Where x is the total solution and the right hand side (3 : 4) expresses the ratio of varnish in relation to the total solution. Hence,

240/x = 3/4

By cross multiplication you now have,

3x = 240 * 4

x = 960/3

x = 320

If x is the total solution which is 320 ml, and varnish constitutes 240 ml, then spirit equals,

Spirit = Total solution - varnish

Spirit = 320 - 240

Spirit = 80.

Therefore, you would need 80 ml of mineral spirits.

(c) Robson's tapestries all measure 1.5 m by 1 m. This can be expressed in whole numbers by first eliminating the decimal. Multiplying both dimensions by 10 results in,

1.5 (10) x 1 (10)

15 x 10

If both measurements can also be expressed as 15 m by 10 m, then reducing to the least terms would result in 3 by 2. That is,

15/5 by 10/5

3 by 2

Expressed as a ratio, this now becomes

Ratio = 3 : 2

6 0
3 years ago
Daphne has a preloaded games card that she is using to play games at the arcade as shown in the table.
Lubov Fominskaja [6]

Answer:

she starts with $25

every three games she spends $1.50 (.50 per game)

Step-by-step explanation:

i mean i cant really explain it, its kinda self explanatory

6 0
3 years ago
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