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2 years ago

Please help and explain these two problesm -2a + 4 (a - b ) + 5bx + 3 + 5 (x - 3)

Mathematics

1 answer:

Alenkinab [10]2 years ago

4 0

Just use the distributing property and combine like terms. There isn’t a definite answer since it is an expression.

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May I get some help? Thank you!

Katen [24]

Answer:

vol. of triangular prism = lbh/2

vol. of rectangular prism = 18 of vol. of triangular prism

18x = 18 + 14x

4x = 18

x=4.5 ft

so vol. of rectangular prism = 6 × 4 . 5 × 3 = 81 ftcube

7 0

3 years ago

Read 2 more answers

If 75 g of liquid water ( C = 4.18 j/g C ) in a calorimeter changes temperature from 25 C to 75 C, how much heat was transferred

levacccp [35]

The answer is 157kJ

formula: q=mcT

q= 75 g x 4.18 J/goC x 50 oC
q= 157 kJ

4 0

3 years ago

Read 2 more answers

PLEASE ANSWER I WILL MARK AS BRAINLIEST

Tomtit [17]

Answer:

Six

Step-by-step explanation:

1.Convert all volumes to millilitres

(a) Chlorpheniramine

V = 100 mL

(b) Lidocaine

$V = \text{2 fl oz} \times \dfrac{\text{29.57 mL}}{\text{1 fl oz}} = \textbf{59 mL}$

(c) Banana flavouring

$V = \dfrac{1}{2}\text{ tsp} \times \dfrac{\text{4.928 mL}}{\text{1 tsp}} = \textbf{2.5 mL }$

2. Calculate the total volume

Chlorpheniramine = 100 mL

Lidocaine = 59

Banana flavouring = <u> 2.5 </u>

TOTAL = 162 mL

3. Calculate the number of doses

$\text{Doses} = \text{162 mL} \times \dfrac{\text{1 dose}}{\text{10 mL}} = \text{16.2 doses}\\\\\text{You can't take a fraction of a dose, so the there are $\large \boxed{\textbf{16 doses}}$}$

5 0

3 years ago

Whats the ratio between $76,500 to $100,000

Orlov [11]

Divide each by 100. You get the ratio

765 : 1000

Now divide by 5

153 : 200

You can use this or

0.765 : 1

6 0

3 years ago

Read 2 more answers

Malika earn $40.25 for three and a half hours of overtime work on Saturday determine Malika's overtime pay rate

Roman55 [17]

Just divide 40.25 by 3.5. You get 11.5. So his pay rate is 11.5 every hour.

I hope this helps :)

8 0

3 years ago