7-9: Practice Buddy: Independent Practice; Problem Solving please help!

Simplifying

12x + -18 = 90

Reorder the terms:

-18 + 12x = 90

Solving

-18 + 12x = 90

Solving for variable 'x'.

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Move all terms containing x to the left, all other terms to the right.

Add '18' to each side of the equation.

-18 + 18 + 12x = 90 + 18

Combine like terms:

-18 + 18 = 0

0 + 12x = 90 + 18

12x = 90 + 18

Combine like terms:

90 + 18 = 108

12x = 108

Divide each side by '12'.

x = 9

Hence,

    x = 9

Hope this helps! <3

Answer:

6

Step-by-step explanation:

Answer:

2+4=6

Step-by-step explanation:

Answer:

18 out of 20% gives you 3.6

Step-by-step explanation:

Answer:

B cause I have play capture the flag

Answer:

A is the right answer

Step-by-step explanation:

Answer:

jk

Step-by-step explanation:

Answer:

Not enough info.

Step-by-step explanation:

Answer:

One 8 is in the hundrenths place and another one in the ones place

Step-by-step explanation:

Answer:

118

Step-by-step explanation:

Add Hans laps together then divide by two

Answer:

The answer is 118 laps.

Step-by-step explanation:

First you would have to add 89 + 147 to find how many laps Hans ran over the summer.

Then you have to divide  the answer from 89 + 147 by 2 which is 236 divided by two because Hans' laps were twice as much as lee's do when you do 236 divided by 2 you get 118. So, Lee ran, and swan 118 laps.

Answer:1/6

Step-by-step explanation:

Answer:

is the answer t = $2.00 ?????

Answer:  The variables are the Cost of the item, and the Total cost.

The other cost, the shipping is given here: $2. So that is not really a variable.

You can use almost any letters you'd like. I'm using C for the item's cost,  and T for the total cost in this equation:

C + 2 = T

This question seems to imply that only one item is in the order

Step-by-step explanation:

There may be other ways to do this, if multiple items are ordered.

The variables are the Cost of the item-- and how Many items are purchased.

The Total is also a variable that depends on how many and the cost of the items.

The other cost, the shipping might be a variable in other questions (not here) here: S could be a variable if it is a percentage ot the cost.

You can use almost any letters you'd like. I'm using C for the item's cost, M for the number of items, S for variable shipping, and T for the total cost in this equation:

M×C + S = T

Answer:

Step-by-step explanation:

So in order to solve this you would multiply 159 by 6% and get 9.54 so therefore you add the 9.54 to 159 and get 168.24 Then you add together all the bills which is 180 and subtract 180- 168.24 which equals 11.76 so the answer to your question is that Hunter shall received $11.76 in change.

Answer:

i really dont know this but i will try my best

897

Step-by-step explanation:

Answer: The Last Box! :D

Step-by-step explanation:

Hope this helps!

Answer:

2 1/2 is √2

2 2/3 is 3√2 to the power of 2

3 3/2  √3 to the power of 3

3 1/3 3√3

Step-by-step explanation:

( See the attached picture )

Hope I helped ! ♡

Have a wonderful day / night !ツ

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Answer: 4.18$ or 4.19$ per shirt (I’m not entirely sure my answer is correct but do what you must with this info)

Step-by-step explanation: 200 times 2.80 is 560,

5% of 560 is 588,

150% of 588 is 882,

and then 882 divided by 200 is 4.18 (or 4.19)

Answer:

2) M(2, -4), N(-2, 4)

Step-by-step explanation:

Point L is at (-2, -4). When it is reflected across the y-axis, the x value will turn into its opposite. This means point M is at (2, -4). This same logic applies to reflecting across the x-axis only this time the y value will turn into its opposite. Therefore, point N is at (-2, 4).

Answer:

64

Step-by-step explanation:

You just have to add 35 and 29 and the answer is an integer cause it's a whole number.

Answer:

64

Step-by-step explanation:

You are adding more to the first integer 35, so you have to add the next integer 29 to it.

So, the equation would be 35 + 29

First, add 9 and 5 which is 14. Carry the 1 to the next part.

3+2=5

5+1=6

The end result is 64.

Answer:B, I think

Step-by-step explanation:

Answer:

$1766

Step-by-step explanation:

hope this helps

Answer:

Adult male killer whales are larger overall than their female counterpart including features such as pectoral flippers, dorsal fins, tail flukes, and girth. The largest recorded male killer whale was 9.8 m (32 ft.) in length and weighed 10,000 kg (22,000 lbs.) The largest recorded female was 8.5 m (28 ft.) and weighed 7,500 kg (16,500 lbs.). Data from Icelandic killer whales (North Atlantic type 1) indicate that an average-size male is about 5.8 to 6.7 m (19 to 22 ft.) long, while females averaged 4.9 to 5.8 m (16 to 19 ft.) long. Killer whale sizes vary significantly between different ecotypes.

Male Antarctic type A killer whales can reach lengths of 9.2 m (30 ft.) making them the largest known killer whales. The smallest killer whale ecotype is the Antarctic type C killer whales in which adult females average 5.2 m (17 ft.) and adult males average 5.6 m (18 ft.) in length and can reach a maximum of 6.1 m (20 ft.). At SeaWorld, average size for adult males is 6.6 m (21.7 ft.) Two of the largest adult male killer whales at SeaWorld weigh 4,340 kg (9,570 lbs.) and 5,380 kg (11,860 lbs.).

At SeaWorld, average size for females is 5.5 m (18 ft.) and 2,442 kg. (5,384 lbs.) SeaWorld's adult female whales range in weight from 2,313 kg (5,100 lbs.) to 3,719 kg (8,200 lbs.). The general body shape of a killer whale is roughly cylindrical but tapering at both ends. This characteristic fusiform shape is quite energy efficient for swimming.  Killer whales are black and white, with a gray patch called a "saddle" or a "cape" on the back, just behind the dorsal fin. A killer whale's forelimbs are adapted for swimming. A killer whales uses its rounded, paddlelike pectoral flippers to steer and, with the help of the flukes, to stop. A killer whale's pectoral flipper contains 5 digits much like the fingers on a human hand. Each lobe of the two-lobed tail is called a fluke. Flukes are flat pads of tough, dense, fibrous connective tissue, completely without bone or cartilage. Like the flukes, the dorsal fin is made of dense, fibrous connective tissue, without bones or cartilage. A killer whale has an indistinct rostrum (snout-like projection).

A single blowhole on top of the head is covered by a muscular flap. A killer whale breathes through its blowhole. The blowhole is relaxed in a closed position, and the flap provides a water-tight seal. To open its blowhole, a killer whale contracts the muscular flap.

A killer whale's eyes are on each side of its head, just behind and above the corner of its mouth, and in front of its white eyespot.

A killer whale's large teeth are conical and interlocking. Toothed whales have only one set of teeth; they are not replaced once lost. The number of teeth varies among individuals. There are usually 10 to 14 teeth on each side of each jaw (40 to 56 teeth total). A killer whale's blubber layer lies beneath the dermis and measures from 7.6 to 10 cm (3 to 4 in.) thick. Blubber is a layer of fat reinforced by collagen and elastic fibers. In general, blubber has a number of important functions: A killer whale's dermis (skin) is smooth. The outer layer continually and rapidly renews itself, and the old skin sloughs off. The increased skin cell turnover increases swimming efficiency by creating a smooth body surface which reduces drag.

Facts:

1) The name killer whale derives from their original name ‘whale killers’ given to them by sailors who saw them hunting whales. Over time, the name eventually switched around.  The name ‘orca‘ comes from their Latin species name Orcinus orca, where orcinus translates to mean ‘Kingdom of the dead’.

2.  Despite their name, killer whales are actually a dolphin – the largest species of oceanic dolphin!

3.Whilst they can and do eat prey such as finfish and marine mammals, New Zealand orca have become specialised at hunting sharks and rays. They can often be seen up around rocky reefs and in the shallows of beaches while they are hunting.

4.The average life span of an orca is not too dissimilar to a human, at 50-80 years for females and slightly less for males at 29-60 years.

5.Orca can be seen in every ocean on the earth. They are one of the most successful marine mammals in terms of range.

Answer:

I not really sure but I think 72 (I'm not 100% sure I'm sorry if it's wrong)

Answer:

Commutative Property of Addition

Answer: 5 hours.

Step-by-step explanation:

3 x 5 = 15

I got 32 374.8514 miles Hope this helps

(*please mark brainliest If in correct, Thank you)