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Anarel [89]
3 years ago
15

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

Mathematics
2 answers:
Stolb23 [73]3 years ago
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

16

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:

d

Step-by-step explanation:

Given

12x^{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 &lt; −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)=

<em>Plugging in values for a and b</em>

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:

<u>RISE OVER RUN</u>

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

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

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

7 0
3 years ago
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