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BlackZzzverrR [31]
4 years ago
14

Drag the tiles to the correct boxes to complete the pairs.

Mathematics
2 answers:
Delvig [45]4 years ago
6 0

16/-8=-2

Whenever dividing a -negative number and +positive number= number will be always -

3  3/7 / 1  1/7= 24/7 *7/8= 3 ( Cross out 7 and 7, divide by 1). Cross out 8 and 24 and divide by 8) ( Also always flip over the second fraction only when dividing)

3 3/7= 24/7 because multiply the denominator and whole number. 3*7=21

Add 21 with the numerator (3)= 21+3=24

-12.2 / (-6.1)=2

Whenever dividing two - negative numbers= + positive number

-2 2/5 / 4/5= -12/5*5/4=-3 Cross out 5 and 5- divide by 5. Cross out 4 and -12, divide by 4

Answers:

- 2 = 16/-8=-2

3= 3  3/7 /( dividing )1 1/7= 3

2= -12.2 / (-6.1)=2

-3=-2 2/5 / ( dividing) 4/5=-3

amm18124 years ago
4 0

Answer:

1). -2 = 16 ÷ (-8)

2) 3 = 3\frac{3}{7} ÷ 1\frac{1}{7}

3). 2 = (-12.2) ÷ (-6.1)

4). -3 = -2\frac{2}{5} ÷ \frac{4}{5}

Step-by-step explanation:

1). 16 ÷ (-8) = -\frac{16}{8}=-2

2). 3\frac{3}{7} ÷ 1\frac{1}{7}

   = \frac{24}{7} ÷ \frac{8}{7}

   = \frac{24}{7}\times \frac{7}{8}

   = 3

3). (-12.2) ÷ (-6.1)

   = \frac{12.2}{6.1}

   = 2

4). -2\frac{2}{5} ÷ \frac{4}{5}

   = -\frac{12}{5} ÷ \frac{4}{5}

   = -\frac{12}{5} × \frac{5}{4}

   = -3

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Why is 3x1/10 less than 3x10?
IrinaK [193]

Answer: 3 × 1/ 10 is not less than 3 × 10

Step-by-step explanation:

Because 3 × 1 / 10 is (0. 3) and 3 × 10 is (30) they are equivalent.

3 0
3 years ago
Read 2 more answers
The Sahara Desert has an area of approximately 9,400,400 km2. While estimates of its average depth vary, they center around 150
dolphi86 [110]

Answer:

1.128048 \times 10^{25} grains of sand are in the Sahara Desert

Step-by-step explanation:

Given :

The Sahara Desert has an area of approximately 9,400,400 sq.km.

Depth = 150 m

To Find :Approximately how many grains of sand are in the Sahara Desert?

Solution:

Area of Sahara desert = 9,400,400 sq.km.

1 km^2 = 1000000 m^2

So, 9,400,400 km^2 = 1000000 \times 9400400 m^2

9,400,400 km^2 =9.4004 \times 10^{12}m^2

Volume of sand =Area \times depth

                           =1.41006\times 10^{15} m^3

1 m ^3 = 1000000 cm^3

So, 1.41006\times 10^{15} m^3 = 1.41006\times 10^{15} \times 1000000cm^3

1.41006\times 10^{15} m^3 =1.41006 \times 10^{21}cm^3

1 cubic cm holds grains of sand = 8000

1.41006 \times 10^{21}cm^3 holds grains of sand = 1.41006 \times 10^{21} \times 8000

                                                                                    = 1.128048 \times 10^{25}

Hence 1.128048 \times 10^{25} grains of sand are in the Sahara Desert

7 0
3 years ago
The graph g(x) is a translation of y=3x
Orlov [11]

Answer:

The first one

Step-by-step explanation:

6 0
3 years ago
Q: The perimeter of triangle is 240. it sides are proportional to 3:4:5. The largest side of triangle is
kotegsom [21]
240= 3x +4x 5x
240=12x
20=x
100=5x
5 0
4 years ago
A company manufacturer two types of printers, an inkjet printer and a laser printer. The company can make a total of 60 printers
myrzilka [38]

Answer:

30 inkjet printers

30 laser printers

Step-by-step explanation:

Let x be inkjet printer

Let y be the laser printer

Total printer produced per day = 60

This implies that x+y = 60

The company has 120 labor hours per day. If it has 1 labor hour to make a inkjet printer and 3 labor hours to make a laser printer, we will have

x + 3y = 120

So we have

x + y = 60 ........(1)

x + 3y = 120 ........(2)

Subtract equation 1 from 2

We have

2y = 60

y = 60/2

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Put y= 30 into equation 1

x + y = 60

x + 30 = 60

x = 60 -30

x = 30

Therefore we have 30 inkjet printers and 30 laser printer.

6 0
3 years ago
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