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3 years ago

How to solve -11b+7=40

Mathematics

2 answers:

frutty [35]3 years ago

4 0

40-7= 33
-11/11 0
33/11
Answer is 3

Rasek [7]3 years ago

3 0

Answer:

b = −3

Step-by-step explanation:

−11b+7=40

Step 1: Subtract 7 from both sides.

−11b+7−7=40−7

−11b=33

Step 2: Divide both sides by -11.

−11b/11=33/11

b=−3

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The Martinez family is traveling to a play in Richmond. A round trip train ticket costs $8.00. Children under the age of 7 trave

tatuchka [14]

Answer: The Martinex family spent $ 82 for train ride and play tickets.

Step-by-step explanation:

Round trip train cost = $ 8.00

For children it cost $ 4.00.

For adult, ticket for play costs= $ 14.00

For children , ticket for play costs= $ 6.00

Mr. And Mrs. Martinez will go with their children, Ricky, Ramona, and Thomas.

2 adults and 3 children ( only one of them is under 7.)

For train we consider only 1 as child rest as adult.

Train cost = 4 x($ 8.00)+ 1 x ($ 4.00)

= $ 32+4 = $36

For play , total cost = 2 x ( $ 14.00) + 3 x ($6)

= $(28+18)

= $ 46

Total spending ( combined) = $36+$ 46

= $82

So, the Martinex family spent $ 82 for train ride and play tickets.

8 0

3 years ago

Which expression is equivalent to 1/4 (5x + 6)?

Anettt [7]

The expression which is equivalent to 1/4 (5x + 6) is; Choice A: {5(1/4)x} + {6(1/4)x}.

According to the question:

We are required to determine an expression which is equivalent to <em>1/4 (5x + 6).</em>

In a bid to expand the expression; we must multiply each term in the parenthesis by (1/4);

In essence; we have;

<em>{5(1/4)x} + {6(1/4)x}</em>

Read more on multiplication;

brainly.com/question/847421

4 0

2 years ago

Pedro is building a playground in the shape of a right triangle. The base of the triangle is 18 yards. The height of the triangl

Bezzdna [24]

Answer:

567 square yards

Step-by-step explanation:

The Area for 1 Triangular playground = 1/2 × Base × Height

The base of the triangle is 18 yards. The height of the triangle is 21 yards.

Hence:

= 1/2 × 18 yards × 21 yards

= 189 square yards

The area of the Triangular 3 playground is given as:

= 3 × 189 square yards

= 567 square yards

6 0

3 years ago

The graph of a line passes through the points (0, 5) and (-10, 0). What is the equation of the line?

natta225 [31]

First find the slope:
y-y/x-x
5-0/0-(-10
5/+10
slope: 1/2
then use:
y-5. 1
--- = ---
x-0. 2
cross multiply.
2 (y-5)=1 (x-0)
2y-10=x
move the ten to the other side, switch the sign
2y=x+10
divide by 2
y=1/2x+5
final answer is
y=1/2x+5

5 0

3 years ago

Read 2 more answers

3 3/4 -1 3/14 in simpilist form

lakkis [162]

For this case we must simplify the following expression:

$3 \frac {3} {4} -1 \frac {3} {14} =$

To do this, we convert the mixed numbers to improper fractions:

$\frac {4 * 3 + 3} {4} - \frac {14 * 1 + 3} {14} =\\\frac {15} {4} - \frac {17} {14} =\\\frac {14 * 15-4 * 17} {4 * 14} =\\\frac {210-68} {56} =\\\frac {142} {56} =\\\frac {71} {28} =\\2 \frac {15} {28}$

Answer:

$\frac {71} {28} = 2 \frac {15} {28}$

6 0

3 years ago