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3 years ago

How do you solve 7y + 1 = 43

Mathematics

1 answer:

MakcuM [25]3 years ago

8 0

Answer:

What we want is the answer on one side, and the variable on the other.

The first step in solving this is to get rid of the +1.

To do this we can use the inverse of operations, so we would subtract 1 from both sides.

7y +1 (-1) is 7y, ans 43-1 is 42.

Your problem now looks like

7y = 42

Next, we want to divide. We will divide both sides by 7

7y/7 is y, and 42/7 is 6.

Now our problem looks like

y = 6

6 is the answer

Hope it helps!

~CoCo❤

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What is required for two triangles to be similar?

andrey2020 [161]

To make this simple

If two pairs corresponding angles in a pair of triangles are congruent then the triangles are similar

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4 years ago

distance is equal to 1300km av average speed is equal to 20 metre per second time is equal to what ?

AURORKA [14]

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3 years ago

After substituting, what is the first operation performed when evaluating 5 + (9 x minus 3) divide 2 for x = 5? addition multipl

ludmilkaskok [199]

Answer:

<h2>Multiplication.</h2>

Step-by-step explanation:

The given expression is

$5+(9x-3) \div 2$

For $x=5$ , we have

$5+(9(5)-3) \div 2$

Notice that the first operation we need to do is multiplication, because that's the right order of operations when we solve these kind of expressions.

$5+(45-3) \div 2$

Then, we subtract

$5+42 \div 2$

Now, we divide

$5+21$

Finally, we sum

$26$

Therefore, the right answer is multiplication.

4 0

3 years ago

Read 2 more answers

Part C

makkiz [27]

a = 1, b =14 and y-coordinate is 6 when x = 0.

Solution:

Let us first write the equation of a line.

Take the points are (2, 2) and (6, 10).

Slope of the line:

$$m=\frac{y_2-y_1}{x_2-x_1}$

$$m=\frac{10-2}{6-2}$

$$m=\frac{8}{4}$

m = 2

Point-slope formula:

$y-y_1=m(x-x_1)$

y - 10 = 2(x - 2)

y - 10 = 2x - 4

Add 10 on both sides,we get

y = 2x + 6

Equation of a line is y = 2x + 6.

To find (a, 8), substitute x = a and y = 8 in the equation,

8 = 2a + 6

Subtract 6 from both sides, we get

2 = 2a

a = 1

To find (4, b), substitute x = 4 and y = b in the equation,

b = 2(4) + 6

b = 8 + 6

b = 14

Substitute x = o in the equation.

y = 2(0) + 6

y = 6

The y-coordinate is 6 when x = 0.

7 0

3 years ago

Please help me! (this is from khan academy 6th grade math!)

Svetach [21]

Answer:

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2nd → 3rd

3rd → 2nd

Step-by-step explanation:

just divide the first set of student wishes to the second set of students in the same question. the 1st for example

x-ray to all students is 6/ 36= 1/6 = 1:6

for all students, you add all the students in the table

8 0

2 years ago