3 years ago

NEEDED NOW

Mathematics

1 answer:

nirvana33 [79]3 years ago

7 0

15·0.8 + x = 30·0.9 --> x = 15

C. is the correct answer

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<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B40%7D%7B3%7D%20%20%5Cdiv%20160" id="TexFormula1" title=" \frac{40}{3} \div 160"

lukranit [14]

Answer:

1/12

Step-by-step explanation:

40/3 ÷ 160 = 40/3 ÷ 160/1 = 40/3 × 1/160 = 1/3 × 1/4 = 1/12

8 0

2 years ago

Read 2 more answers

Y = −1 / 4 (x + 4) 2 −1 on a coordinate plane using its vertex, focus, and directrix.

trasher [3.6K]

Answer:

Hello,

Step-by-step explanation:

do I remind you of the formula :

where (a,b) is the vertex and y=k the directrix

$y=\dfrac{(x-a)^2}{2(b-k)} +\dfrac{b+k}{2} \\\\\\y=-\dfrac{(x+4)^2}{4} -1 \\\\Using\ identification:\\a=-4\\2(b-k)=-4\\b+k=-2\\\\\left\{\begin{array}{ccc}b-k&=&-2\\b+k&=&-2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}2b&=&-4\\2k&=&0\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}b&=&-2\\k&=&0\\\end{array}\right.\\$

Focus=(-4,-2)

Directrix: y=0

Vertex=(-4,-1)

6 0

2 years ago

I need help finding the weather it is continuity or not

Black_prince [1.1K]

Answer:

it is discontinuety bcz at 1,4 and 6 it is discontinued

6 0

3 years ago

For a special order, The ABC company manufactured 400 shirts. Sweatshirts were priced at $35 each and T-shirts at $25 each. The

hodyreva [135]

Answer:

Thy bought 150 Sweatshirts (x) and 250 tshirts (y)

Step-by-step explanation:

35x + 25y = 11500

x + y = 400

-25 (x + y = 400) Multiply by -25 to get the y's to disappear when you add the two equations together

-25x - 25y = 10000

10x =1500

x = 150

Plug 150 in either equation for x to find y

150 + y = 400

y = 250

6 0

3 years ago

Write down the value of 5 in the following numbers.

Sliva [168]

50 tens
5000 thousands
50000 ten thousand
50 tens
5
Hope this helps

7 0

3 years ago