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3 years ago

Evaluate the expression 7b – 5d if b = 6 and d= 5.

Mathematics

2 answers:

NeX [460]3 years ago

5 0

Answer:

Step-by-step explanation:

You plug the variables in into their respective location, resulting in

7(6) - 5(5).

Now, you just multiply, getting

42 - 25

42 - 25 is 17

Hope this helped! Ask me if you have any questions!

ps accepting brainliest ;)

nexus9112 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

7b-5d

7(6)-5(5)

7x6=42

5x5=25

42-25=17

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kerry and four friends want to the movies they purchased sodas costing $5.50 each and hotdog each cosing $12.75 they each contri

grandymaker [24]

Answer:

they will each receive $1.75

Step-by-step explanation:

5.50*5= 27.50

12.75*5= 63.75

27.50+63.75= 91.25

20*5= 100

100-91.25=8.75

8.75/5= $1.75

hope this helps

4 0

2 years ago

which is a correct verbal expression for 9+n A: n more than 9 B: the quotient of 9 and n C: the product of 9 and n D:9 less than

Anton [14]

Your answer is A: n is more than 9. I hope I helped!☺☺

4 0

2 years ago

Read 2 more answers

The base of the triangle decreases by 30% and the height increases by 20%.

sergeinik [125]

Answer:

Area decreases by 16%

Step-by-step explanation:

Use formula for the area of the triangle

$A=\dfrac{1}{2}\cdot \text{Base}\cdot \text{Height}$

<u>Initial triangle:</u>

The base is 18 cm

The height is 5 cm

The area is

$A_{initial}=\dfrac{1}{2}\cdot 18\cdot 5=45\ cm^2$

<u>New triangle:</u>

The base is $(1-0.3)\cdot 18=0.7\cdot 18=12.6\ cm$

The height is $(1+0.2)\cdot 5=1.2\cdot 5=6\ cm$

The area is

$A_{new}=\dfrac{1}{2}\cdot 12.6\cdot 6=37.8\ cm^2$

Area decreases by

$100\%-\dfrac{37.8}{45}\cdot 100\%=100\%-84\%=16\%$

5 0

3 years ago

Addison worked 11 more hours this week than last week. In total, she worked 65 hours this week and last week. Using the equation

Anestetic [448]

Answer:

27 hours

Step-by-step explanation:

Just do the reverse. 65-11 = 54. 54 / 2 = 27.

5 0

2 years ago

Which property of operation could you use to show whether 7y + 7b + 3y and 7(y x b) + 3b are equivalent or not

Dmitry_Shevchenko [17]

Answer and explanation:

They are not equivalent because if we simplify the second expression, the result isn't the same:

7(y×b)+3b

= 7(yb)+3b

=7yb + 3b

Therefore 7yb+3b≠7y+7b+3y

And even though you meant

7(y+b)+3b

=7y+7b+3b

=7y+10b

7y+10b≠10y+7b

5 0

2 years ago