3 years ago

Solve for x given the point (x,9) is a point on the line y = 3x + 7.

Mathematics

2 answers:

kirill115 [55]3 years ago

6 0

From the given point (x , 9) let's plug the value of its y - coordinate of into Equation - y = 3x + 7 and solve for x :

$9 = 3x + 7$

$2 = 3x$

$x = \dfrac{2}{3}$

hence, value of x = 2/3

Ket [755]3 years ago

5 0

Answer:

0.67 = x

Step-by-step explanation:

to solve the value of x we need to : (x,9)

y = 3x + 7

9 = 3x + 7

9 - 7 = 3x

2 = 3x

2/3 = x

0.67 = x

You might be interested in

A triangle with an area of 23 cm² is dilated by a factor of 6. What is the area of the dilated triangle? Enter your answer in th

Marizza181 [45]

Given that:
Area of triangle=23 cm²
Dilation factor= 6
It means that the area of the dilated triangle is 6²=36 times of the original.
Now area of dilated triangle, A'=36 x 23
A'= 828 cm²

Answer: Area of dilated triangle is 828 cm².

7 0

3 years ago

Read 2 more answers

Tiffany used 2/5 kg of cherries to bake pies Linda used 1/10 kg of cherries to bake Tarts how many kilograms of cherries did the

kari74 [83]

1/2 Kg of Cherries

Give both 2/5 and 1/10 a common denominator- 10
4/10 + 1/10 = 5/10 = 1/2

6 0

3 years ago

On a standardized exam, the scores are normally distributed with a mean of 165 and astandard deviation of 40. Find the z-score o

vladimir1956 [14]

The Z-score is calculated by the formula below

$\begin{gathered} z-score=\frac{(x-\mu)}{\sigma}_{} \\ \mu=\operatorname{mean} \\ \sigma=s\tan dard\text{ deviation} \\ x=\text{score} \end{gathered}$

Step 2: Substitute the given parameters in the formula

$\begin{gathered} z-\text{score}=\frac{145-165}{40} \\ Z=-\frac{20}{40} \\ Z=-\frac{1}{2} \\ Z=-0.5 \end{gathered}$

Hence, the z-score of a person who scored 145 on the exam is -0.5

8 0

1 year ago

100 POINTS NEED ANSWER ASAP

never [62]

Answer:

DOMAIN: {4,5,6,7}

RANGE: {4,4.5,5,5.5,6,6.5,7}

Step-by-step explanation:

here is proof

Mark Brainiest Please

4 0

2 years ago

Answer number 10 please thank you

galina1969 [7]

Answer:

35%

Step-by-step explanation:

3 0

2 years ago