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irina [24]
2 years ago
7

Help me please I'm stuck on this question​

Mathematics
1 answer:
Ray Of Light [21]2 years ago
6 0

Answer:

n= 2.9

1:2.9

Step-by-step explanation:

Divide by 15 on both sides

15 divided by 15 is 1

43 divided by 15 is 2.8666666666=>

It states "Give any decimals in your answer to 1 d.p.

Mean we round it to one decimal place

so it is 2.9

Thus the answer for n is 2.9

Hope this helps!

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Albert mixes 10 grams of 15% sugar syrup and 25 grams of 10% sugar syrup. C What is the concentration of sugar in the mixture?
ser-zykov [4K]

Answer:

4

Step-by-step explanation:

Given :

10 grams of 15% sugar syrup;

25 grams of 10% sugar syrup

Therefore,

(10grams * (15/100)) + (25 grams * (10/100))

(10 * 0.15) + (25 * 0.1)

1.5 + 2.5

= 4 grams

4 0
3 years ago
Triangle A″B″C″ is formed using the translation (x + 0, y + 2) and the dilation by a scale factor of 2 from the origin. Which eq
garik1379 [7]

Answer:

segment AC is equal to A''B'' over 2

Step-by-step explanation:

Given that,

Scale factor = 2

The coordinates of A is (-3,3)

The coordinates of B is (1,-3)

The coordinates of C is (-3,3)

We know that, the ratio of length of new segment to the length of segment of original figure is called scale factor.

So.

\dfrac{A''B''}{AC}=2\\\\\text{On cross multiplying,}\\\\AC=\dfrac{A''B''}{2}

It means, segment AC is equal to A''B'' over 2 is the correct answer.

3 0
3 years ago
Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth -5y^2+2y=-2
77julia77 [94]
5y^2-2y-2 = 0

y = 1/5+ √11/5 or 1/5 - √11/5
6 0
3 years ago
4(1/2+3/4)+(-2)<br><br> I need help
nirvana33 [79]

Answer:

3

Step-by-step explanation:

4(1/2+3/4)+(-2)   Distribute.

2+3+(-2)             Simplify.

2+3-2

5-2

3

Hope this helps!! Have an amazing day (。・∀・)ノ゙

5 0
3 years ago
Cost of bike 240 dollars find the amount of discount at 25% off ​
attashe74 [19]

Answer:

= (100 - 25)\% \\  = 75\% \\ cost = 75\% \: of \: 240  \\  =  \frac{75}{100}  \times 240 \\  = 180 \: dollars

5 0
3 years ago
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