Amath test is worth 100 points and has 30 problems. each problem is worth either 3 points or 4 points. how many 4- point problems are there?

Ten

Step-by-step explanation:

The harder part is to make an equation out of the text.

Let x be the number of 3 point questions.

In this case the nu,ber of 4 point questions is (30-x)

They all add up to 100 points.

3x + 4(30-x) =100

Solve for x

x=20

There are 20 three point questions

30-20=10 There are ten four point questions.

Lets check.  20*3 + 10*4 = 60+40=100

d≈7.07in

step-by-step explanation:

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)