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3 years ago

I don't know help me

Mathematics

2 answers:

Nataliya [291]3 years ago

7 0

Ok so the first step would be to distribute 3 into 3x and -6. So 3 times 3x would be 9x. 3 times -6 is -18.

the equation now is
18 = 9x - 18

Now you would have to do inverse operation

18 = 9x - 18
+18 +18

36 = 9x

Now you would divide 9x into 36 to isolate the variable

36 / 9x = 4
x = 4

notka56 [123]3 years ago

5 0

9x = 36
x = 4
bc 3 timea 3x is 9x and 3 times -6 is -18. Then move -18 to the other side by adding so 18+18 is 36. 36 = 9x and you would solve for x... x= 4

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A recipe for cooking rice indicates that 14 cups of boiling water are needed for 8 cups of rice.

Natali [406]

Hello!

This is a question about ratios and relating them to multiples of the ratio.

We are given that a recipe for cooking rice requires 14 cups of boiling water for every 8 cups of rice.

Then we are asked how many cups of rice are needing to be added if we have 28 cups of boiling water.

Since 28 is two times 14, and assuming that this ratio is proportional, we can multiply the cups of rice by 2 to find the equal ratio.

That means that 16 cups of rice should be added if we have 28 cups of boiling water.

In terms of ratios, we can set up the following proportion.

$\frac{14}{8}=\frac{28}{x}$

Then here, we can cross multiply and solve for $x$ .

$14x=224$

$x=16$

Hope this helps!

8 0

2 years ago

Please help with ratios of the area of triangles.....thank you

harkovskaia [24]

Answer:

Part 1) The ratio of the areas of triangle TOS to triangle TQR is $\frac{4}{25}$

Part 2) The ratio of the areas of triangle TOS to triangle QOP is $\frac{4}{9}$

Step-by-step explanation:

Part 1) Find the ratio of the areas of triangle TOS to triangle TQR

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor

The scale factor is equal to

TS/TR

substitute the values

6/(6+9)

6/15=2/5

step 2

Find the ratio of the areas of triangle TOS to triangle TQR

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

$(\frac{2}{5})^{2}=\frac{4}{25}$

Part 2) Find the ratio of the areas of triangle TOS to triangle QOP

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor

The scale factor is equal to

TS/QP

substitute the values

6/9

6/9=2/3

step 2

Find the ratio of the areas of triangle TOS to triangle QOP

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

$(\frac{2}{3})^{2}=\frac{4}{9}$

4 0

3 years ago

Work out (3.6 x 10^-5) divided by (1.8 x 10^2)<br> give your answer in standard form

Andre45 [30]

Answer:

lol it's 0.002

Step-by-step explanation:

(3.6x10^-5) = 0.000036 divided by (1.8x10^2) is 0.002

3 0

2 years ago

The sum of two consecutive integers is 123 what’s is the smallest of the two integers

RideAnS [48]

The smallest of two integers is 61

Step-by-step explanation:

Let x be the smaller integer

Then the next integer will be:

x+1

According to given statement that the sum of both is 123

$x+ (x+1) = 123\\x+x+1=123\\2x+1=123$

Subtracting 1 from both sides

$2x+1-1=123-1\\2x=122$

Dividing both sides by 2

$\frac{2x}{2}=\frac{122}{2}\\x=61$

The smallest of two integers is 61

Keywords: Linear equations, Variables

Learn more about linear equations at:

#LearnwithBrainly

6 0

3 years ago

Identify the phase shift of each function. Describe each phase shift ( use a phrase like 3 units to the left):

Temka [501]

ANSWER

Phase shift: 2 units right.

EXPLANATION

The given sine function is

$y = - \sin(x - 2)$

In mathematics, a horizontal shift may also be referred to as the phase shift.

This function is shifted to the right 2 units.

8 0

2 years ago