Solve this system by using substitution:

y=7x-10

y=-3

When spoke of a wheel reaches from the center of the wheel to its rim. If the circumference of the rim of the wheel is 42 inches, how long is each spoke? Round your answer to the nearest hundredth

There is 5/6 of an apple pie let from dinner tomorrow victor plans to eat 1/6 of that was left how much of the whole pie will be left after he eats tomorrow?

Which number belongs to the solution set of the equation below? 9x = 144

At a school fair, 70% of the people are under 16 years old. One-third of the people remaining are teachers. If there are 21 teachers at the fair, how many people are there at the fair total?

In a scale drawing of an apartment 1 centimeter represents 2 3/4 feet. If the length of the kitchen is 4 1/2 centimeters on the scale drawing, what is the actual length in feet of the kitchen

Round both numbers to the nearest whole number and estimate the result 6.8*7.9, 7.6*7.5, 0.9*44, 0.2*44

The sum of a 3-digit number and a 1-digit number is 217. the product of the numbers is 642. if one number is between 200 and 225, what are the numbers

Counting codes. How many 3-digit telephone area codes are possible if the first digit cannot be 0 or 1?

The equation P=28+2.54w models the relation between the amount of Randy's monthly water bill payment, P, in dollars, and the number of units of water, w, used. Interpret the P-intercept of the equation.

A roller coaster ride holds a total of 36 passengers. The ratio of males to females on the ride is 5 : 4. Let xx represent the number of males on the ride. Let yy represent the number of females on the ride.