4 years ago

9(8f+7s) use s=3 and f=2

1 answer:

8 0

The answer is 333. put the 3 and the 2 in the correct spots. then multiply 8 and 2 which is 16 then 7 and 3 which is 21. then add which is 37. you would have to multiply 37 and 9 and you would get 333.

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You want to decorate a party hall with a total of least 40 red and yellow baloons. You want a minimum of 25 yellow baloons. Writ

QveST [7]

Let x be the number of red balloons and y the number of yellow balloons used, then
x + y ≥ 40
y ≥ 25

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3 years ago

Given that 7 x − 3 y = 23 Find x when y = − 2 Give your answer as an improper fraction in its simplest form.

pantera1 [17]

7x-3y=23
7x-3(-2)=23
7x+6 =23
-6. -6
7x=17
————
7. 7

x=2.42

7 0

2 years ago

Can anyone help me on 6,8,10<br> Write the first four terms of the sequence?

bazaltina [42]

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7 0

3 years ago

Read 2 more answers

Find the equation of a line perpendicular to 2x – 3y = 21 that passes through the point (2,8).

kramer

Answer:

y = -3/2x + 11

Step-by-step explanation:

2x - 3y = 21 => 3y = 2x - 21 => y = 2/3x - 7

Perpendicular lines have slopes that are negative reciprocals of one another

so slope of perpendicular line is -3/2

y = mx + b

y = -3/2x + b

Using (2,8)

8 = -3/2(2) + b

8 = -3 + b

b = 11

y = -3/2x + 11

6 0

3 years ago

A dog owner observes that from birth to age 14 weeks, the puppy’s weight can be modelled by the equation w=365×(1.23)t , for (0≤

Fantom [35]

Answer and Step-by-step explanation:

(1) Scale factor is a constant value that multiplies another value. For a puppy's weight, scale factor is 1.23.

The percentage growth is

1.23 = 1 + 0.23

Percentage is 0.23 or 23%.

(2) Equation for increase is

$w=365(1.23)^{t}$

When w = 4000g:

$4000=365(1.23)^{t}$

$(1.23)^{t}=\frac{4000}{365}$

$1.23^{t}=10.96$

Using the log law:

$log_{b} (M^{k}) = klog_{b}(M)$

$log(1.23^{t})=log(10.96)$

t.log(1.23) = log(10.96)

0.08990t = log(10.96)

$t=\frac{log10.96}{0.08990}$

t = 11.56

The puppy will weigh 4000 grams in 11 and half weeks or between 11 and 12 weeks.

5 0

4 years ago