MATHEMATICS HIGH SCHOOL

One positive number exceeds 4 times another positive number by 3. The product of the two numbers is 351. What are the two numbers? A) 6 and 9
B) 6 and 24
C) 9 and 39
D) 25 and 29

Answers

Answer 1
Answer: Hello,
Answer C 9 and 39.

Let a the first and b the second
a=4b+3
a*b=351

==>b*(4b+3)=351
==>4b²+3b-351=0
Δ=9+4*4*351=5625=75²
==>b=(-3-75)/8 =-9.75 ==>a=4*(-9.75)+3=-36 (excluded) a>0
or b=(-3+75)/8=9 and a=4*9+3=39

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Answer:

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Step-by-step explanation:

What is 16% of 25?

A.64
B.16
C.6
D.4

Answers

Answer is 4 because 100 is divisible by 25 by 4 and 16 is divisible by 4 so the answer is 4
16/100*25 =16/4=4
the answer is 4

What is a unit? * what is a unit? a process used to convert units and rates using a conversion factor and multiplication a quantity used as a standard measurement a solution or an answer a mathematical phrase involving at least one variable and sometimes numbers and operation symbols

Answers

Answer:

C. a quantity used as a standard measurement

Step-by-step explanation:

A unit is a universally acceptable system of measurement. The system is majorly referred to as the international standard of units i.e (SI) units.

Since physical quantities could be categorize as either fundamental or derived. The use of units in measurement is very essential, because it relates the magnitude measured to the physical quantity.

The units of measurement tells what physical quantity has been measured.

Help me pleasssseeee​

Answers

Answer:

$600

Step-by-step explanation:

The bike is $800

if the bike cost 3/4 of regular price then you multiply $800 * (3/4)

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One hundred times the quantity six plus five

Answers

100 times (6+5)
100 times 11
100 groups of 11=1100
Hope I helped:)
100 ( 6 + 5 )

100 (11)

100 × 11

⇒ 1100.

In march, a customer spent $8.55 at an office-supply store for some 12-packs of pens. At that time, the store was selling packages of one dozen pens for $1.35. Any customer who bought more than 4 packages, received a discount of $0.30 on the price of each package in excess of 4 packages. In september, the same customer went back to the store to buy the same number of pens. By then, the price per 12-pack of pens had been raised to $1.50 each, with the same discount for more than 4 packages. How much more did the customer have to pay in September than in March?

Answers

We can start by making an equation from the information given on the month of March to find how many packs he bought.
4(1.35)+x(1.05)=8.55 This equation shows that for the first 4 packs he bought, he payed $1.35. Then, consequently, for each pack after that, he payed $0.30 less, and we don't know how many more he bought, so we set it up as shown. Finally, we set it all equal to $8.55 since that's how much he payed that month. We get that x=3, meaning that he bought a total of 7 packs of pens that month.
Knowing this, we can now make an equation for the month of September.
4(1.50)+3(1.20)=x This time, we know the entire left side, that he paid $1.50 for the first 4 packs and $0.30 less for the last 3. We get x=$9.60
Knowing this, we can subtract the amount he paid in September by the amount he paid in March to get the answer... $9.60-$8.55=$1.05

I hope this helped!
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