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3 years ago

Answer me please now

Mathematics

2 answers:

eimsori [14]3 years ago

7 0

socks cost £8

Step-by-step explanation:

One football costs £6

Two footballs would cost 2 x £6=£12

Two footballs £12 and a pair of socks equals £20. To find the cost of the socks subtract the footballs from £20

£20- £12= £8

Anna35 [415]3 years ago

4 0

Answer:

1. $8.

2. 48 counters.

Step-by-step explanation:

1. A pair of socks cost 20 - 2(6)

= $8.

2. let the number of counters in Box A and Box be be x.

Then the number of counters in Box B after the transfer is x + 1/2 x.

x + 1/2 x = 72

1.5 x = 72

x = 72 / 1.5

= 48.

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Find the measure of angle ABC. A. 124 B. 97 C. 56 D. 51

Airida [17]

Answer: Last Option

Step-by-step explanation:

By definition the sum of the internal angles of a triangle must always be equal to 180 °.

This means that:

$32 + (2x-15) + (x-5)=180$

Now we solve the equation for the variable x

$32 + 2x-15 + x-5=180$

$2x+x +32-15-5=180$

$3x +32-20=180$

$3x +12=180$

We subtract 12 in both barks of the equation

$3x +12-12=180-12$

$3x=168$

Divide by 3 on both sides of the equation

$\frac{3}{3}x=\frac{168}{3}$

$x=\frac{168}{3}$

$x=56$

Finally the measure of angle ABC is: (56-5)° = 51°

6 0

3 years ago

Read 2 more answers

Which equation best describes the pattern in the table below?

cupoosta [38]

Answer:

Step-by-step explanation:

The pattern in the table adds 1.50 for ever 15 minutes. That means per minute it adds $\frac{1.5}{15} =0.10$ or 10 cents. This means you multiply each minute by 0.10 to find the cost. This is the equation c = 0.10m.

7 0

3 years ago

Consider the Pareto chart, which shows the number of student blood donors by their type for one day of a campus blood drive. How

Marat540 [252]

Question attached

Answer:

130

Step-by-step explanation:

Number of students old donors can be calculated from the Pareto chart by adding number of blood donors on the different bars:

Type 0= 50

Type A= 35

Type B =30

Type AB =15

Therefore 50+35+30+15=130 blood donors

8 0

2 years ago

PLEASE HELP! A positive number is 1/3 of another number. The sum of the numbers is five less than the square of the larger numbe

antoniya [11.8K]

Answer: The numbers are 1 and 3.

Step-by-step explanation:

Let x = smaller number , y= larger number.

As per given,

$x=\dfrac{y}{3}$ ...(i)

$x+y=y^2-5$ ...(ii)

Put value of x from (i) in (ii)

$\dfrac{y}{3}+y=y^2-5\\\\\Rightarrow\ \dfrac43y=y^2-5\\\\\Rightarrow\ 3y^2-4y-15=0\\\\\Rightarrow\ 3y^2-9y+5y-15=0\\\\\Rightarrow\ 3y(y-3)+5(y-3)=0\\\\\Rightarrow\ (y-3)(3y+5)=0\\\\\Rightarrow\ y=3 \ \ or\ y=\dfrac{-5}{3}$

Since numbers are positive , so y=3 is correct.

And x will be 1 [from (i)]

Hence, the numbers are 1 and 3.

7 0

2 years ago

Factor the quadratic by checking factor pairs. -15x2 – 21x + 18 -15x2 – 218 + 19 = -3

d1i1m1o1n [39]

Answer:

-3(x + 2)(5x - 3)

Step-by-step explanation:

-15x² – 21x + 18

-3(5x² + 7x - 6)

-3[5x² + 10x - 3x - 6]

-3[5x(x + 2) - 3(x + 2)]

-3(x + 2)(5x - 3)

3 0

3 years ago