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3 years ago

Define a variable. Then write and solve an equation for each situation.

2 answers:

4 0

180 = 1.5d
180 / 1.5 = d
120 = d <== the Parker family drove 120 miles
=================
80% of the total questions = 16
0.80x = 16
x = 16 / 0.80
x = 20 <== there were 16 total questions on the quiz

artcher [175]3 years ago

4 0

Step-by-step explanation:

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In an experiment, a ball is drawn from an urn containing 11 orange balls and 8 blue balls. If the ball is orange, three coins ar

Sophie [7]

Answer:

a) 4

b) 12

Step-by-step explanation:

Since, when an orange ball is drawn, three coins are tossed. So, sample points are OHHH, OHHT, OHTH, OHTT. OTHH, 0THT, OTTH, OTTT

So, clearly, 8 sample points will have an orange ball.

When a blue ball is drawn, two coins are tossed. So, sample points are BHH,BHT,BTH,BTT.

So, clearly, 4 samples points will when a blue ball is drawn.

Total samples points=4+8=12

4 0

3 years ago

Factor completely:

maw [93]

Answer:

Step-by-step explanation:

Given

12 $x^{5}$ + 6x³ + 8x² ← factor out 2x² from each term

= 2x²(6x³ + 3x + 4) → d

7 0

3 years ago

Which inequality statement describes the two numbers on a number line? "−5 and a number 4 units to the right of −5" A) 4 < −5

Marina CMI [18]

Answer: D

Step-by-step explanation:be cause you have to add 4 to negetive 5 and and that negetive 1 which is greater than -5

8 0

3 years ago

Evaluate the expression 3.14(a2 + ab) when a = 4 and b = 3. (Input decimals only, such as 12.71, as the answer.

kondaur [170]

Answer:

87.92

Step-by-step explanation:

3.14(a²+ab)=

Plugging in values for a and b

3.14(4²+4×3)=

3.14(16+12)=

3.14(28)=

87.92

6 0

3 years ago

Read 2 more answers

THIS IS DUE TODAY AND I NEED AS MUCH HELP AS I CAN ITS DUE WITHIN 15 MINS

xenn [34]

Answer:

1) -3/3

2) 1/2

3) 3/4

4) -2/1

5) 1/2

6) 4/1

Step-by-step explanation:

RISE OVER RUN

(Rise) Using the farthest dot on the left you count how much you rise till you align with the second dot (depending on whether you go up or down determines + or -)

(Run) Once aligned with the second dot count whilst 'running' towards it till you've reached it. (If you go right it's +, if you go left it's -)

Hard to explain, but it's really easy if you look up a tutorial.

7 0

3 years ago