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VashaNatasha [74]
3 years ago
6

1.

Mathematics
1 answer:
mariarad [96]3 years ago
7 0

Answer:

80 questions

Step-by-step explanation:

100%/20%=5%

5×16=80

Therefore, there are 80 questions in the test.

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If the graph of a quadratic does not intercept the x axis at any point, then it has:
katrin [286]

Answer:

No real roots

Step-by-step explanation:

Roots of a quadratic are the x-intercepts of the graph

3 0
3 years ago
A toy train car is 6 in. long. If a real train car is 75 ft long, which of the following have the same constant of proportionali
Rus_ich [418]

Answer:

use this

Step-by-step explanation:

velocity = distance / time…. So distance = velocity x time

3 0
4 years ago
What number reduced by 14 percent equals 3440?
Wewaii [24]

Answer:

4000

Step-by-step explanation:

100 - 14 = 86

Here we shall take 86 to obtain the number easily

X × 86/100 = 3440

X = 3440 × 100 / 86

So X = 40 × 100

X = 4000

3 0
3 years ago
Can someone pls help me with this I really need it :/
Alexandra [31]

Step-by-step explanation:

√7 + √7 = 2√7 (irrational)

√7 + (-√7) = 0 (rational)

√7 + 0 = √7 (irrational)

√7 + 7 = 7 + √7 (irrational)

The answer is the 2nd option / -√7.

5 0
3 years ago
Read 2 more answers
You buy 3 tickets for $48 total for the jazz concert on
statuscvo [17]

Answer: Friday night. Least expensive ticket

Step-by-step explanation:

Friday night.: 48/3 =16 so each ticket costs $16

Saturday night 36/2= 18 so each ticket costs $18

Brother collects 96/6 = 16. So each person had enough for a $16 ticket. They can go to the Friday night concert. They paid for the least expensive ticket.

8 0
4 years ago
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