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3 years ago

This fish eats 2 rocks and eats another 2 rocks how many rocks is it?

Mathematics

2 answers:

scZoUnD [109]3 years ago

5 0

Answer:

Step-by-step explanation:

Akimi4 [234]3 years ago

4 0

Answer:

2+2=4

Step-by-step explanation:

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A company manufactures three types of cabinets. It makes 110 cabinets each week. In the first week, the sum of the number of typ

miss Akunina [59]

Answer:

In the first week, the number of type-1 cabinets produced was 15,
the number of type-2 cabinets produced was 30,
the number of type-3 cabinets produced was 65.

Step-by-step explanation:

If we let a, b, c represent the numbers of type-1, type-2, and type-3 cabinets produced in the first week, respectively, we can write three equations in these unknowns:

a + b + c = 110 . . . . . total cabinets for the first week
a + 2b - c = 10 . . . . relationship of quantities in the first week
3a +0b +c = 110 . . . . total cabinets in the second week

It can be convenient to let a machine solver find the solution to this set of equations. Most graphing calculators can handle it, along with several web sites.

Solving by hand, we can subtract the second equation from twice the first. This gives ...

2(a +b +c) -(a +2b -c) - 2(110) -(10)

a +3c = 210 . . . . simplify

Subtracting this from 3 times the third equation gives ...

3(3a +c) -(a +3c) = 3(110) -(210)

8a = 120 . . . . . simplify

a = 15 . . . . . . . divide by 8

Using this in the third equation of the original set, we have ...

3·15 +c = 110

c = 65 . . . . . . subtract 45

Then, in the first equation, we get ...

15 + b + 65 = 110

b = 30 . . . . . . . subtract 80

The solution is (type-1, type-2, type-3) = (15, 30, 65) for the first week.

4 0

4 years ago

Read 2 more answers

In 1984 a locally-owned car company sold 2,743 cars. In 2003, the car sales rose to 4,069. What was the average rate of change f

tatiyna

Answer:

70 cars per year.

Step-by-step explanation:

Given:

In 1984 a locally-owned car company sold 2,743 cars.

In 2003, the car sales rose to 4,069.

Question asked:

What was the average rate of change for the total number of cars sold?

Solution:

In 2003 number of cars sold = 4069

In 1984 number of cars sold = 2743

Change in the number of car sold = 4069 - 2743

= 1326

Now, time interval between 2003 and 1984 = 19

$The\ average\ rate\ of\ change=\frac{Change\ in\ the\ number\ of\ car\ sold}{Time \ interval}$

$=\frac{1326}{19} \\=69.789\\\\=70\ cars\ per\ year\ (approx)$

Thus, the average rate of change for the total number of cars sold is 70 cars per year.

7 0

3 years ago

Write an expression that is equivalent to 10c

Crank

10 * c thats all i can come up with.

3 0

4 years ago

Solve for x and y then find angle ABE

Soloha48 [4]

Answer: x is 9° , y is 21°. The measure of angle ABE is 48°.

Step-by-step explanation:

First we will solve for x.

The variable x appears in the angle 8x + 18 and that angle is a right angle.

Right angles have the measure of 90 degrees so we will set the angle equal 90 and solve for x.

8x + 18 = 90 Subtract 18 from both sides

- 18 -18

8x = 72 divide both sides by 8

x = 9

y is also on the right side and the combination of both angles has to also equal 90 degrees because they form a right angle.

Since we already know x is 9 we will input it into the left side for x and solve for y.

y + 3(9) + 2y = 90

3y + 27= 90

-27 -27

3y = 63

y = 21

Now we need to find the measure of angle ABE.

ABE is represented by y + 3x so since we know the value of y and x we will input it into the expression and solve for the angle.

21 + 3(9) = m∠ABE

21 + 27= m∠ABE

48 = m∠ABE

This means the measure of angle ABE is 48°

5 0

3 years ago

Find the volume make it an improper fraction then a mixed number please do a step by step explanation and I will give you brainl

Andrews [41]

Answer:

8463/32=264 15/32

Step-by-step explanation:

Let's make every fraction improper first.

7 3/4=31/4

5 2/8=42/8

6 1/2=13/2

Simplify 42/8

42/8=21/4

21/4

31/4

13/2=26/4

21/14*31/4*26/4=(21*31*26)/64=16926/64=8463/32

3 0

2 years ago