MATHEMATICS HIGH SCHOOL

2 (2x+5) +4 (x+2) = 66

Answers

Answer 1
Answer:

Answer:

2 (2x+5) +4 (x+2) = 66       x = 6

Step-by-step explanation:
Answer 2
Answer: The answer is x=6.

Tip: You can use the Desmos Scientific Calculator to help you.

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7. Numericals(a) A box has length 50 cm, breadth 20 cm and height 10 cm, then find
(i) its surface area of base;
(ii) its volume
(1000 cm², 100000 cm3)​

Answers

Answer:

i = 1000cm2

ii = 100000cm3

Step-by-step explanation:

for q i

surface area of base = l* b

= 50* 20

1000cm^2

for q 2

volume l*b*h

= 50*20*10

= 100000cm^3

hope it will be helpfull

I need help with the problem​

Answers

Answer:

Angle Bisector

Step-by-step explanation:

What is the value of the expression (3a-b)/(6(b+a)) when a = 4 and b = -2?

Answers

Answer:-2

Step-by-step explanation:3(4) - (-2) ÷ 6(-2) + 4

= 12 + 4 ÷ -12 + 4

= 16 ÷ -8

= -2

Answer:

It will be 7/6

Step-by-step explanation:

Plug the values of a and b in the expression

You should take care in the fraction first

Then it will be ( 12 + 2 )/ 6 (-2+4)

= 14 / 12 = 7/6

An equilateral triangle has an apothem of 5 cm. Find the perimeter of the triangle to the nearest centimeter.

Answers

The apothem is the distance from the center to the midpoint of one of the sides of a regular polygon.  You can make a right triangle with the apothem, the line from the midpoint to the corner and the line from the center to the corner.  An equilateral triangle has 60 degree angles (180/3).  The right triangle has half of one of those angles so 30 degrees.  Now we have a 30-60-90 triangle where the short leg is 5cm.  The long leg, which is also half of one side of the triangle is thus 5√(3).  A whole side of the triangle is 10√(3).  Multiply that by 3 to get the perimeter of 30√(3).

A doctor prescribes a 100-mg antibiotic tablet to be taken every eight hours. Just before each tablet is taken, 20% of the drug remains in the body. (a) How much of the drug is in the body just after the sec- ond tablet is taken

Answers

Answer:

120 mg

Step-by-step explanation:

20% of  100 is 20 so that would be 20mg  plus the 100mg they just took

100+20=120mg

i hope this helps you!

Grandma’s Bakery sells single-crust apple pies for $6.99 and double crust cherry pies for $10.99. The total number of pies sold on a busy Friday was 36. If the amount collected for all the pies that day was $331.64, how many of each type were sold?

Answers

Answer:

15 single-crust apple pies were sold and 21 double-crust cherry pies were sold.

Step-by-step explanation:

Let a be the number of single-crust apple pies sold

Let c be the number of double-crust cherry pies sold
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