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3 years ago

Please help with number 1! Thanks

Mathematics

1 answer:

Darina [25.2K]3 years ago

4 0

To convert -34º C to Fahrenheit, plug the temperature in Celsius in the formula and solve.
F = 9/5C + 32
F = 9/5(-34) + 32
To solve this you must first multiply.
9/5 • -34 = -61.2
F = -61.2 + 32
Now add.
-61.2 + 32 = -29.2
The answer is -34º C equals -29.2º F.

Hope this helps!

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Harry and Jack raised roses and petunias in their garden. If 15 percent of the flowers were roses and there were 120 roses, how

guapka [62]

Answer:

138 flowers

120+(120×(15%))= 138

4 0

3 years ago

What is the slope-intercept form of linear equations?

lara31 [8.8K]

to get the equation of any straight line, we simply need two points off of it, let's use the points from the picture below.

$(\stackrel{x_1}{8}~,~\stackrel{y_1}{3})\qquad (\stackrel{x_2}{12}~,~\stackrel{y_2}{5}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{5}-\stackrel{y1}{3}}}{\underset{run} {\underset{x_2}{12}-\underset{x_1}{8}}}\implies \cfrac{2}{4}\implies \cfrac{1}{2}$

$\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{3}=\stackrel{m}{\cfrac{1}{2}}(x-\stackrel{x_1}{8}) \\\\\\ y-3=\cfrac{1}{2}x-4\implies y=\cfrac{1}{2}x-1$

if we already have the slope, and we can see the y-intercept on the table, then we can simply use the slopel-intercept form and plug both of them in.

$\begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}\qquad \begin{array}{|c|ll} \cline{1-1} slope\\ \cline{1-1} \cfrac{1}{2}\\ \cline{1-1} y-intercept&\\\cline{1-1} (0~~,~~-1)\\ \cline{1-1} \end{array}~\hfill y=\cfrac{1}{2}x-1$

6 0

3 years ago

For each ordered pair, determine when weather it’s a solution to 7x -6y=19

kumpel [21]

<h3>Answer:</h3>

Options A and B

<h3>Solution:</h3>

In order to determine whether or not an ordered pair is a solution to an equation, plug in the values of x and y:
7x-6y=19
7(7)-6(5)=19
49-30=19
19=19
We have a true statement. Therefore, the ordered pair is a solution to the equation 7x-6y=19.
Let's try the other ordered pairs.
7(1)-6(-2)=19
7+12=19
19=19
Here's another true statement.
Let's check the remaining two options:
7(-5)-6(3)=19
-35-18=19
-53≠19
Here we have a false statement.
7(-4)-6(0)=19
-28-6=19
-34≠19
Therefore, the ordered pairs that make this equation true are (7,5) and (1,-2)

Hope it helps.

Do comment if you have any query.

7 0

3 years ago

Hello, please help! I will be using this a lot within the next few days lol

lina2011 [118]

Answer:

1/2

Step-by-step explanation:

1/3 + 1/6

LCM of 3 and 6 is 6.

therefore, multiple the fraction that doesn't have 6 as denominator with a fraction that makes the denominator equal to the LCM.

1/3 × 2/2 = 2/6

(we have used 2/2 because 3×2= 6)

so,

2/6+1/6 = 2+1/6

(2 + 1 whole divided by 6)

therefore we get,

3/6

on simplification,

3/6 = 1/2 = 0.5

hope it helps!!

PLEASE MARK BRAINLIEST..

8 0

2 years ago

Read 2 more answers

Solve: 1/5x = -10 A) -50 B) -20 C) -2 D) 2

Ede4ka [16]

Answer: A. x= -50

Step-by-step explanation:

1/5x = -10

<u> 1 </u>= -10

1.1 = 5x. (-10)

- 50x

x= -50

6 0

4 years ago