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3 years ago

If y = 10x - 1 and the value of x is 10, what is the value of y?

Mathematics

1 answer:

KatRina [158]3 years ago

5 0

Answer:

Step-by-step explanation:

99 because x= 10 so 10 times 10 is 100 - 1 will = 99

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Carol has $30 to spend on gasoline for her car. After buying 8 gallons,she has $4 left. How much did each gallon of gasoline cos

photoshop1234 [79]

Answer:

$3.25 per gallon

Step-by-step explanation:

She had $30 and now has $4, so she spent $30- $4 = $26

With $24 she bought 8 gallons of gas.

$26/(8 gallons) = $3.25/(1 gallon) [ divide 26 by 8 to get the unit rate]

She spent $3.25 per gallon

6 0

3 years ago

Read 2 more answers

If X = 2 inches, Y = 8 inches, W = 4 inches, and Z = 4 inches, what is the area of the object?

max2010maxim [7]

Answer:

C. 63 square inches

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3 years ago

A hypothesis test is to be performed for a population proportion. For the given sample data and null hypothesis, compute the val

liberstina [14]

Answer:

The correct option is a

Step-by-step explanation:

From the question we are told that

The sample size is n = 415

The sample proportion is $\r p = 0.49$

Now

The null hypothesis is $H_o : p = 0.3$

The alternative hypothesis is $H_a : p \ne 0.3$

The test statistics is mathematically evaluated as

$t = \frac{\r p - p }{ \frac{\sqrt{ p (1- p )} }{n} }$

substituting values

$t = \frac{0.49 - 0.3 }{ \sqrt{ \frac{0.3 (1- 0.3 ) }{415} }}$

$t = 8.446$

8 0

3 years ago

Four friends share 3535 of a rectangular pizza .What fraction of the pizza did each receive?

Gwar [14]

Answer:

$\frac{35}{4} or 8\frac{3}{4}$

6 0

3 years ago

The point C(2,3) is translated along a vector that is parallel to the line y=3x-2. The translation vector has magnitude square r

qaws [65]

Step-by-step explanation:

The translation vector v can be resolved into its x and y components, where x² + y² = 10 (Pythagoras' Theorem) and y = 3x

(parallel to y = 3x - 2, slope = 3).

We have x² + (3x)² = 10,

=> x² + 9x² = 10, 10x² = 10, x = 1 or x = -1.

When x = 1, y = 3. When x = -1, y = -3.

Therefore 2 possible translation vectors

are (1, 3) or (-1, -3).

First new C' = (2 + (1), 3 + (3)) = (3, 6).

Second new C'= (2 + (-1), 3 + (-3)) = (1, 0).

The possible images are (3, 6) and (1, 0).

4 0

3 years ago