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3 years ago

8

Need help!! I don't know how to solve theseeeeeeeeeeeeeeeeeeeeeeeeeeee.

1 answer:

ValentinkaMS [17]3 years ago

3 0

Cosine = adjacent/hypothenuse
Adjacent = 28
Hypothenuse = 35

Solution: 28/35

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Matt invests £1800 for 2 years at a simple interest rate of 10%.

Snezhnost [94]

Answer:

Step-by-step explanation:

P = 1800

R = 10%

T = 2 years

I = PRT

= 1800 * 10/100 * 2

= 1800 * 0.1 * 2

I = £360

6 0

3 years ago

What is the perimeter of this shape?

Korvikt [17]

Answer:

59.4 km

Step-by-step explanation:

First you need to find the circumference of the circle. 20*3.14=62.8. Then, you divide this by two, because there is only half of a circle, to get 31.4.

Then you can just add 16 + 12 + 31.4 to get 59.4.

6 0

3 years ago

a local community theather 240 tickets for Saturday nights performance they sold 180 more st full price then the discount ticket

gizmo_the_mogwai [7]

Question:

The local community theater sold a total of 240 tickets for Saturday night’s performance. They sold 180 more full-price tickets than discount tickets. Which system of equations can be used to model this situation?

Answer:

$x = 180 + y$

$x + y = 240$

Step-by-step explanation:

Given

$Tickets = 240$

Represent the number of full price with x and discounted price with y.

From the question:

x = 180 more than y

So:

$x = 180 + y$

Also, a total of 240 were sold.

So:

$x + y = 240$

Hence, the equations are:

$x = 180 + y$

$x + y = 240$

Solving further;

Substitute 180 + y for x in $x + y = 240$

$180 + y + y = 240$

$180 + 2y = 240$

Solve for 2y

$2y = 240 - 180$

$2y = 60$

Divide through by 2

$y = 30$

Recall that: $x = 180 + y$

$x = 180 + 30$

$x = 210$

Hence:

<em>Full Price = 210</em>

<em>Discounted = 30</em>

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3 0

3 years ago

Please solve the question.

Otrada [13]

Answer:

C

Step-by-step explanation:

(7b-4) + (-2b+a+1)

= 7b - 4 - 2b + a + 1

=7b - 2b + a - 4 + 1

=5b + a - 3

5 0

3 years ago

You are to give an injection of a drug. The dosage is 0.4 mg per kilogram of bod The concentration of the drug in vial is listed

kipiarov [429]

Answer:

You inject 60.9628 milliliters of dosage

Step-by-step explanation:

1 pound = 0.453592kg,

Patient's weight in pounds = 168

Patient's weight in kg = $76.2035 kg$

Now we are given that The dosage is 0.4 mg per kilogram of bod

So, dosage = $0.4 \times 76.2035 mg = 30.4814 mg$

1 microgram = 0.001 mg

Concentration of drug = $500 micrograms/ml = 500 * 0.001 mg/ml = 0.5 mg/ml$

Now we are supposed to find How many milliliters (= cc) are you to inject?

So,milliliters of dosage required to inject = $\frac{30.4814}{0.5} = 60.9628$

Hence you inject 60.9628 milliliters of dosage

7 0

4 years ago