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3 years ago

We need help . we think we got it but were not sure

Mathematics

2 answers:

kondaur [170]3 years ago

8 0

13.5/3= 4.5 4.5x10= 450 The original price is 450 dollars
4.5=10%
315= 70%
You paid 315 dollars

maria [59]3 years ago

3 0

Answer:

your right

Step-by-step explanation:

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What is the 8th term if your first four are 3,7,11,15

amid [387]

3,7,11,15,19,23,27,31

32 = 8th term.
The common difference is +4

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3 years ago

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Eight people audition for a choir. The choir director must choose one soprano, one alto, and one tenor. In how many ways can the

aleksandr82 [10.1K]

I think it's C) but the answer should be 6561.

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3 years ago

What are the missing angles

stepan [7]

Missing sides or angles??

If it's missing sides... Then using sine rule

A/ sin A = B/ sin B

Let sin A =30° and A=8

Let sin B=60° and B =?

Hence 8/sin 30°=B/sin 60°

Multiplying 8 x sin 60 =B sin 60

6.928 = 0. 5B

Dividing both sides by 0.5

Hence B= 13.856

doing same for side c

Let sin A =30° and A =8

Let sin c =90° and C =?

Hence 8/sin30° = C/sin 90

Sin 90° x8 =. 0.5c

Sin 90=1

1x8 =0.5c

Dividing both sides by 0.5 gives 16

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7 0

4 years ago

A jar contains sugar. The jar and the sugar have a total weight of 850 g. Anna uses 2/3 of the sugar. The jar and the sugar now

maria [59]

Answer:

$J = 370g$

Step-by-step explanation:

Given

Represent the weight of the Jar with J and the sugar with S

Initially, we have:

$J + S = 850g$

After 2/3 of sugar is removed we have:

$J + S -\frac{2}{3}S= 530g$

Required

Determine the weight of the jar

$J + S = 850g$ --- (1)

$J + S -\frac{2}{3}S= 530g$ --- (2)

Simplify (2)

$J + S -\frac{2S}{3}= 530g$

Take LCM

$J + \frac{3S - 2S}{3}= 530g$

$J + \frac{S}{3}= 530g$

Make S the subject in (1)

$J + S = 850g$

$S = 850g - J$

Substitute 850g - J for S in $J + \frac{S}{3}= 530g$

$J + \frac{850g - J}{3}= 530g$

Multiply through by 3

$3 * J + 3*\frac{850g - J}{3}= 530g * 3$

$3J + 850g - J= 1590g$

Collect Like Terms

$3J - J= 1590g-850g$

$2J= 740g$

Make J the subject

$J = \frac{1}{2} * 740g$

$J = 370g$

<em>The jar weighs 370g</em>

5 0

3 years ago

Read 2 more answers

-5(3-6)=-45 simplified

IgorLugansk [536]

We can use the distributive property for this:

-5(3 - 6) = -45

-15 + 30 = -45

15 = -45.

Soooo that's like the farthest you can simplify... and both sides aren't equal...sooo yeah.

6 0

4 years ago

We need help . we think we got it but were not sure ​

We need help . we think we got it but were not sure