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erik [133]
3 years ago
13

David buys a sandwich and a drink. These bills and coins represent the cost of each item.

Mathematics
2 answers:
zloy xaker [14]3 years ago
3 0

Answer:$5.66

Step-by-step explanation:

marshall27 [118]3 years ago
3 0

Answer:

$5.66

Step-by-step explanation:

We see that David paid $4.70 on his sandwich and $0.96 on his chips. Adding those together we get $5.66.

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What’s the answer for (3b+3c) 2 for b=4 and c=5
vivado [14]

Answer:

The answer is:54

Step-by-step explanation:

U first multiply 3*4 then u multiply  3*5 then add them together then multiply them by 2


6 0
4 years ago
Read 2 more answers
PLEASE HELP URGENTLY. Look at the given triangles.
Korvikt [17]

Step-by-step explanation:

blue: 4x+2+7x+7+5x -4 = 16x +5

red: x+3+x+7+2x-5 = 4x -5

difference: 16x+5 - (4x -5) = 12x +10

3 0
3 years ago
In the rectangular trapezoid ABCD AC is driven by a CD (see figure).
eimsori [14]

Answer:

solution given:

let's see only in a right-angled triangle Δ ACD.

AC=3 units

AD=5 units

since Δ ACD is a right-angled triangle. It satisfies Pythagoras law

AD^{2}=AC^{2}+CD^{2}

25=9+CD^2

CD^2=25-9=16

CD=\sqrt{16} =4 units

Now

Area of rectangle Δ ACD=\frac{1}{2} CD*AC=\frac{1}{2}*4*3=6\: square \:units

similarly,

\frac{1}{2} AD*CE=6\: square \:units\\ 5*CE=6*2\\CE=\frac{12}{5}=2.4 units

since AB=CE=2.4 units

Δ ACE is a right-angled triangle. It satisfies Pythagoras law.

AC^{2}=AE^{2}+CE^{2}\\3^2=AE^2+2.4^2\\9-5.76=AE^2\\AE and BC=\sqrt{1.24} =1.11 units

now

area of trapezoid=area ofΔACD+Area of ΔABC

=6+\frac{1}{2}AB*BC=6+\frac{1}{2}*2.4*1.11=6+1.33 =7.33\: square \:units

6 0
2 years ago
What are possible values of x and why (7^0)^x=1
Tomtit [17]
\left(a^n\right)^m=a^{n\cdot m}\\\\(7^0)^x=7^{0\cdot x}=7^0=1\\\\conclusion:\\\\x\in\mathbb{R}
6 0
4 years ago
2/5of a number is 80. What is 34of the same number?
Masja [62]

Answer:

150

Step-by-step explanation:

First you have to find what number 80 is 2/5 of, to do this do the reciprocal of 2/5 which would be 5/2. Multiply 80 by 5/2 and you'll get 200, then find what 3/4 of 200. Multiply 200 by 3, then divide by 4 to get the answer of 150.

3 0
3 years ago
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